diff --git a/.gitignore b/.gitignore
index 1fcd153..3e5979f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,6 @@ test.dot
 *.toc
 *.pdf
 test.rtf
-*.png
 *.out
 test.html
 .lein*
diff --git a/examples/.gitignore b/examples/.gitignore
index c76759c..5e8b2fb 100644
--- a/examples/.gitignore
+++ b/examples/.gitignore
@@ -3,4 +3,6 @@
 *.html
 *.dot
 *.debug
-*.txt
\ No newline at end of file
+*.txt
+*.png
+!testimage.png
\ No newline at end of file
diff --git a/examples/format.gamebook b/examples/format.gamebook
index cb6b042..f358487 100644
--- a/examples/format.gamebook
+++ b/examples/format.gamebook
@@ -1,12 +1,27 @@
 title = Format
+starttext = Adventure begins in section 1.
+hideintrotext = HIDE THE INTRO
+showintrotext = SHOW THE INTRO
+
+= Introduction
+Adding an introduction
+to the gamebook here. This will create
+a section, but it will not be shuffled nor numbered
+with the gamebook sections below.
+
+= Another Heading
+This starts another non-shuffled section.
+
 * 1 start
 This examples tests gamebook formatting, not so much game mechanics or
 references. Currently there is nothing here really.
 This section contains some tricky characters to quote,
 like } and { and " and ' and \.
 HTML will probably not like <div> or &boom;.
+There should be an image below as well.
 If something broke, turn to [[bad]],
 otherwise turn to [[good]].
+[img]testimage.png[/img]
 
 * dum :dummy:
 Sections tagged as dummy will not be
diff --git a/examples/references.gamebook b/examples/references.gamebook
index 746b33a..6159932 100644
--- a/examples/references.gamebook
+++ b/examples/references.gamebook
@@ -1,4 +1,11 @@
 max = 400
+
+= Introduction
+This gamebook demonstrates simple references between sections.
+Also notice that an intro section like this one can
+reference sections, like the start at [[start]] or the next
+section at [[next]].
+
 * 1 start
 This is where the adventure begins. You can go on to the
 next section, see [[next]] or try the other instead, see [[other]].
diff --git a/examples/testimage.png b/examples/testimage.png
new file mode 100644
index 0000000..41e39ae
Binary files /dev/null and b/examples/testimage.png differ
diff --git a/formatgamebook.py b/formatgamebook.py
index b177193..f474c03 100755
--- a/formatgamebook.py
+++ b/formatgamebook.py
@@ -28,6 +28,7 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 """
 
+import re
 import os
 import os.path
 import sys
@@ -41,6 +42,8 @@ from output import OutputFormat
 
 USAGE = "usage: %prog [options] inputfile(s)... outputfile"
 
+SECTION_NAME_RE = re.compile("^[a-z][a-z_0-9]*$")
+
 def of(extension, name, quote):
     return {'extension' : extension,
             'name' : name,
@@ -81,17 +84,15 @@ def parse_file_to_book(inputfile, book):
     number = None
     text = ""
     tags = None
+    intro_section = False
     for line in inputfile.readlines():
-        if before_first_section:
-            if '=' in line:
-                config = line.split('=')
-                book.configure(config[0].strip(), config[1].strip())
         if line.startswith('*'):
             before_first_section = False
             if name:
-                add_section_to_book(book, name, text, number)
+                add_section_to_book(book, name, text, intro_section, number)
             number = None
             text = ""
+            intro_section = False
             heading = [h.strip() for h in line[1:].strip().split()]
             if len(heading) > 1 and heading[-1].startswith(':'):
                 if not heading[-1].endswith(':'):
@@ -106,20 +107,34 @@ def parse_file_to_book(inputfile, book):
             elif len(heading) == 2:
                 number = int(heading[0])
                 name = heading[1]
-            else:
-                raise Exception("bad section heading %s" % str(heading))
-        else:
+            if not name or not SECTION_NAME_RE.match(name):
+                raise Exception("bad section heading: %s" % str(heading))
+        elif line.startswith('='):
+            if name:
+                add_section_to_book(book, name, text, intro_section, number)
+            name = line[1:].strip()
+            intro_section = True
+            text = ""
+        elif before_first_section and '=' in line:
+            config = line.split('=')
+            book.configure(config[0].strip(), config[1].strip())
+        elif name:
             text = text + " " + line.strip()
+        elif len(line.strip()):
+            raise Exception("unknown content before sections: %s" % line.strip())
     if name:
-        add_section_to_book(book, name, text, number, tags)
+        add_section_to_book(book, name, text, intro_section, number, tags)
 
-def add_section_to_book(book, name, text, number=None, tags=None):
+def add_section_to_book(book, name, text, intro_section=False, number=None, tags=None):
     section = sections.Section(name, text)
     if tags:
         section.add_tags(tags)
-    book.add(section)
-    if number:
-        book.force_section_nr(name, number)
+    if intro_section:
+        book.addintro(section)
+    else:
+        book.add(section)
+        if number:
+            book.force_section_nr(name, number)
 
 def make_output(outputfilename, templatedirs):
     for of in OUTPUT_FORMATS:
@@ -134,6 +149,8 @@ def write_book(book, output_format, outputfilename):
     shuffled_sections = book.shuffle()
     output = open(outputfilename, 'w')
     output_format.write_begin(book, output)
+    output_format.write_intro_sections(book, shuffled_sections, output)
+    output_format.write_sections_begin(book, output)
     output_format.write_shuffled_sections(shuffled_sections, output)
     output_format.write_end(book, output)
     save_section_mapping(shuffled_sections, outputfilename)
diff --git a/output.py b/output.py
index 15ef76e..46cfbad 100644
--- a/output.py
+++ b/output.py
@@ -12,6 +12,27 @@ class OutputFormat (object):
         # FIXME make sure book config is properly quoted
         print >> output, self.format_with_template("begin", book.config)
 
+    def write_intro_sections(self, book, shuffled_sections, output):
+        for s in book.introsections:
+            if not s.hastag('dummy'):
+                self.write_intro_section(s, shuffled_sections, output)
+
+    def write_intro_section(self, section, shuffled_sections, output):
+        # FIXME some serious code-duplication here
+        refs = []
+        refsdict = ReferenceFormatter(section, shuffled_sections,
+                                      self.format_with_template("section_ref"),
+                                      self.quote)
+        formatted_text = self.format_section(section, refsdict)
+        print >> output, self.format_with_template("introsection", {
+            'name' : section.name,
+            'text' : formatted_text,
+            'refs' : '\n'.join(refsdict.getfound()) # hack for DOT output
+        }),
+
+    def write_sections_begin(self, book, output):
+        print >> output, self.format_with_template("sections_begin", book.config);
+
     def write_shuffled_sections(self, shuffled_sections, output):
         for i, p in enumerate(shuffled_sections.as_list):
             if p and not p.hastag('dummy'):
@@ -26,7 +47,7 @@ class OutputFormat (object):
                                       self.quote)
         formatted_text = self.format_section(section, refsdict)
         print >> output, self.format_with_template("section", {
-            'nr' : shuffled_sections.to_nr[section],
+            'nr' : section.nr,
             'name' : section.name,
             'text' : formatted_text,
             'refs' : '\n'.join(refsdict.getfound()) # hack for DOT output
@@ -92,7 +113,7 @@ class OutputFormat (object):
         }),
 
     def write_end(self, book, output):
-        print >> output, self.format_with_template("end"),
+        print >> output, self.format_with_template("end", book.config),
 
     def format_with_template(self, name, values=None):
         template = self.templates.get(name)
@@ -108,7 +129,7 @@ class ReferenceFormatter (object):
         self.shuffled_sections = shuffled_sections
         self.found = set()
         self.ref_template = ref_template
-        self.items = {'nr' : shuffled_sections.to_nr[section]}
+        self.items = {'nr' : section.nr}
         self.quote = quote
 
     def __getitem__(self, key):
@@ -116,8 +137,8 @@ class ReferenceFormatter (object):
             return self.quote(self.items[key])
         to_section = self.shuffled_sections.from_name[key]
         res = self.ref_template % {
-            'nr' : self.shuffled_sections.to_nr[to_section],
-            'from_nr' : self.shuffled_sections.to_nr[self.section]
+            'nr' : to_section.nr,
+            'from_nr' : self.section.nr
         }
         if key in self.shuffled_sections.name_to_nr:
             self.found.add(res)
diff --git a/sections.py b/sections.py
index c8a1b0c..6eeb7ef 100644
--- a/sections.py
+++ b/sections.py
@@ -17,30 +17,57 @@ class Section:
         return "Section(%s, %s, %s)" % (repr(self.name), repr(self.text),
                                         repr(self.tags))
 
+class ShuffledSection (Section):
+    def __init__(self, nr, section):
+        self.nr = nr
+        self.name = section.name
+        self.text = section.text
+        self.tags = section.tags.copy()
+
+    def __repr__(self):
+        return "ShuffledSection(%d, %s, %s, %s)" % (self.nr,
+                                                    repr(self.name), repr(self.text),
+                                                    repr(self.tags))
+
+class IntroSection (Section):
+    def __init__(self, section):
+        self.nr = -1
+        self.name = section.name
+        self.text = section.text
+        self.tags = section.tags.copy()
+
+    def __repr__(self):
+        return "IntroSection(%d, %s, %s, %s)" % (repr(self.name), repr(self.text),
+                                                 repr(self.tags))
+
 class ShuffledSections:
-    def __init__(self, as_list, from_nr, to_nr, from_name, nr_sections):
+    def __init__(self, as_list, from_nr, from_name, nr_sections):
         self.as_list = as_list
         self.from_nr = from_nr
-        self.to_nr = to_nr
         self.from_name = from_name
         self.name_to_nr = {}
         for n in from_name:
-            self.name_to_nr[n] = to_nr[from_name[n]]
+            self.name_to_nr[n] = from_name[n].nr
         for nr in nr_sections:
             self.name_to_nr[nr_sections[nr]] = nr
 
-STR_BOOK_CONFIG = set(['title', 'author'])
+STR_BOOK_CONFIG = set(['title', 'author', 'starttext', 'hideintrotext',
+                       'showintrotext'])
 INT_BOOK_CONFIG = set(['max'])
 
 class Book:
     def __init__(self):
         self.sections = []
+        self.introsections = []
         self.from_name = {}
         self.nr_sections = {}
         self.codewords = set()
         self.config = {'max' : 0,
                        'title' : 'Gamebook',
-                       'author' : ''}
+                       'author' : '',
+                       'starttext' : 'Turn to 1 to begin.',
+                       'hideintrotext' : '(hide instructions)',
+                       'showintrotext' : '(show instructions)'}
 
     def configure(self, name, value):
         if name in INT_BOOK_CONFIG:
@@ -59,6 +86,9 @@ class Book:
         if len(self.sections) > self.config['max']:
             self.config['max'] = len(self.sections)
 
+    def addintro(self, section):
+        self.introsections.append(IntroSection(section))
+
     def add_codeword(self, word):
         self.codewords.add(word)
 
@@ -70,8 +100,8 @@ class Book:
     def shuffle(self):
         as_list = [None]
         from_nr = {}
-        to_nr = {}
         shuffled = self.sections[:]
+        shuffled_from_name = {}
         while len(shuffled) < self.config['max']:
             dummy = Section('Dummy', '')
             dummy.add_tags(['dummy'])
@@ -83,16 +113,16 @@ class Book:
         for nr in range(1, self.config['max'] + 1):
             if (self.nr_sections.has_key(nr)
                 and self.nr_sections[nr] in self.from_name):
-                section = self.from_name[self.nr_sections[nr]]
+                section = ShuffledSection(nr, self.from_name[self.nr_sections[nr]])
             elif len(shuffled):
-                section = shuffled.pop()
+                section = ShuffledSection(nr, shuffled.pop())
             else:
                 section = None
             as_list.append(section)
             from_nr[nr] = section
             if section:
-                to_nr[section] = nr
-        return ShuffledSections(as_list, from_nr, to_nr, self.from_name.copy(),
+                shuffled_from_name[section.name] = section
+        return ShuffledSections(as_list, from_nr, shuffled_from_name,
                                 self.nr_sections)
 
 class Item (object):
diff --git a/templates/DEFAULT/img.txt b/templates/DEFAULT/img.txt
new file mode 100644
index 0000000..e69de29
diff --git a/templates/DEFAULT/introsection.txt b/templates/DEFAULT/introsection.txt
new file mode 100644
index 0000000..91bb99f
--- /dev/null
+++ b/templates/DEFAULT/introsection.txt
@@ -0,0 +1,2 @@
+#include "introsectionheading"
+#include "sectionbody"
diff --git a/templates/DEFAULT/sections_begin.txt b/templates/DEFAULT/sections_begin.txt
new file mode 100644
index 0000000..dd41cff
--- /dev/null
+++ b/templates/DEFAULT/sections_begin.txt
@@ -0,0 +1,2 @@
+
+%(starttext)s
diff --git a/templates/debug/img.debug b/templates/debug/img.debug
new file mode 100644
index 0000000..15974fd
--- /dev/null
+++ b/templates/debug/img.debug
@@ -0,0 +1 @@
+[IMG]%(inner)s[/IMG]
\ No newline at end of file
diff --git a/templates/debug/introsection.debug b/templates/debug/introsection.debug
new file mode 100644
index 0000000..530d132
--- /dev/null
+++ b/templates/debug/introsection.debug
@@ -0,0 +1,2 @@
+%(name)s
+%(text)s
diff --git a/templates/dot/introsection.dot b/templates/dot/introsection.dot
new file mode 100644
index 0000000..e69de29
diff --git a/templates/dot/sections_begin.dot b/templates/dot/sections_begin.dot
new file mode 100644
index 0000000..e69de29
diff --git a/templates/html/begin.html b/templates/html/begin.html
index ee03fe2..ea6d929 100644
--- a/templates/html/begin.html
+++ b/templates/html/begin.html
@@ -12,5 +12,5 @@
   </style>
   </head>
   <body>
-#include "intro"
+#include "hideintro"
   <div class="gamebook">
diff --git a/templates/html/end.html b/templates/html/end.html
index c3cc145..e1ed820 100644
--- a/templates/html/end.html
+++ b/templates/html/end.html
@@ -3,5 +3,6 @@
     <script>
 #include "endscript"
     </script>
+#include "showintro"
   </body>
 </html>
diff --git a/templates/html/endscript.html b/templates/html/endscript.html
index 926a878..2c82c28 100644
--- a/templates/html/endscript.html
+++ b/templates/html/endscript.html
@@ -1,3 +1,2 @@
 if (this.gamebook) {
-    gamebook.turnTo(1);
 }
diff --git a/templates/html/hideintro.html b/templates/html/hideintro.html
new file mode 100644
index 0000000..fad4ecf
--- /dev/null
+++ b/templates/html/hideintro.html
@@ -0,0 +1,2 @@
+<div class="hideintrolink nodisplay"
+    onclick="gamebook.hideIntroSections()">%(hideintrotext)s</div>
diff --git a/templates/html/img.html b/templates/html/img.html
new file mode 100644
index 0000000..c32e899
--- /dev/null
+++ b/templates/html/img.html
@@ -0,0 +1 @@
+<img src="%(inner)s" class="sectionimage"></img>
\ No newline at end of file
diff --git a/templates/html/introsection.html b/templates/html/introsection.html
new file mode 100644
index 0000000..dc10186
--- /dev/null
+++ b/templates/html/introsection.html
@@ -0,0 +1,6 @@
+<div class="introsection">
+<span class="introsectionheading">%(name)s</span>
+<div class="introsectionbody">
+%(text)s
+</div>
+</div>
diff --git a/templates/html/script.html b/templates/html/script.html
index 9c7c7a0..ead7c65 100644
--- a/templates/html/script.html
+++ b/templates/html/script.html
@@ -64,6 +64,12 @@
             this.displaySection(nr);
         },
 
+        'start' : function() {
+            this.hideIntroSections();
+            this.addClassToClass('startlink', 'nodisplay');
+            this.turnTo(1);
+        },
+
         'displaySection' : function(nr) {
             if (this.player.currentSection) {
                 this.player.currentSection.element.style.display = 'none';
@@ -74,6 +80,35 @@
             this.player.currentSection = gamebook.sections[nr];
         },
 
+        'hideIntroSections' : function() {
+            this.addClassToClass('introsection', 'nodisplay');
+            this.removeClassFromClass('displayintrolink', 'nodisplay');
+            this.addClassToClass('hideintrolink', 'nodisplay');
+        },
+
+        'showIntroSections' : function() {
+            this.removeClassFromClass('introsection', 'nodisplay');
+            this.addClassToClass('displayintrolink', 'nodisplay');
+            this.removeClassFromClass('hideintrolink', 'nodisplay');
+            document.body.scrollIntoView();
+        },
+
+        'addClassToClass' : function(className, addClass) {
+            Array.prototype.forEach.call(
+                document.getElementsByClassName(className),
+                function(e) {
+                    e.classList.add(addClass);
+                });
+        },
+
+        'removeClassFromClass' : function(className, removeClass) {
+            Array.prototype.forEach.call(
+                document.getElementsByClassName(className),
+                function(e) {
+                    e.classList.remove(removeClass);
+                });
+        },
+
         'runActions' : function(e) {
             var enableNextLink = true;
             var hasXorScope = false;
diff --git a/templates/html/sections_begin.html b/templates/html/sections_begin.html
new file mode 100644
index 0000000..db98d54
--- /dev/null
+++ b/templates/html/sections_begin.html
@@ -0,0 +1,2 @@
+<div class="startlink"
+onclick="gamebook.start()">%(starttext)s</div>
diff --git a/templates/html/showintro.html b/templates/html/showintro.html
new file mode 100644
index 0000000..44ada42
--- /dev/null
+++ b/templates/html/showintro.html
@@ -0,0 +1,2 @@
+<div class="displayintrolink nodisplay"
+    onclick="gamebook.showIntroSections()">%(showintrotext)s</div>
diff --git a/templates/html/startlink.html b/templates/html/startlink.html
new file mode 100644
index 0000000..5f8bd11
--- /dev/null
+++ b/templates/html/startlink.html
@@ -0,0 +1,2 @@
+<div class="startlink"
+ onclick="gamebook.start()">%(starttext)s</div>
diff --git a/templates/html/style.html b/templates/html/style.html
index 559e702..660c7e1 100644
--- a/templates/html/style.html
+++ b/templates/html/style.html
@@ -18,3 +18,8 @@
     .has {font-style: italic;}
     .hasnot {font-style: italic;}
     .collectionTemplate {display: none;}
+    .sectionimage {width: 100%%; padding: 1em;}
+    .nodisplay {display: none;}
+    .startlink {font-weight: bold; cursor: pointer;}
+    .displayintrolink {cursor: pointer;}
+    .hideintrolink {cursor: pointer;}
\ No newline at end of file
diff --git a/templates/rtf/introsectionheading.rtf b/templates/rtf/introsectionheading.rtf
new file mode 100644
index 0000000..761b4ff
--- /dev/null
+++ b/templates/rtf/introsectionheading.rtf
@@ -0,0 +1,2 @@
+\b \qc %(name)s
+\b0\
diff --git a/templates/tex/begin.tex b/templates/tex/begin.tex
index 5d9a7c0..d7cc95b 100644
--- a/templates/tex/begin.tex
+++ b/templates/tex/begin.tex
@@ -2,6 +2,7 @@
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage[hidelinks]{hyperref}
+\usepackage{graphicx}
 
 #include "geometry"
 \newif\ifpdf
@@ -24,5 +25,8 @@
 \begin{document}
 
 #include "titlepage"
+
+\pagestyle{empty}
+
 \clearpage
 
diff --git a/templates/tex/documentclass.tex b/templates/tex/documentclass.tex
index b7115ab..9d9dd99 100644
--- a/templates/tex/documentclass.tex
+++ b/templates/tex/documentclass.tex
@@ -1,2 +1,2 @@
-\documentclass[A5,twocolumn]{book}
+\documentclass[a5,onecolumn]{book}
 
diff --git a/templates/tex/img.tex b/templates/tex/img.tex
new file mode 100644
index 0000000..f575c45
--- /dev/null
+++ b/templates/tex/img.tex
@@ -0,0 +1,4 @@
+\begin{center}
+\includegraphics[width=.9\textwidth]{%(inner)s}
+\end{center}
+ 
diff --git a/templates/tex/introsectionheading.tex b/templates/tex/introsectionheading.tex
new file mode 100644
index 0000000..8525347
--- /dev/null
+++ b/templates/tex/introsectionheading.tex
@@ -0,0 +1,3 @@
+\subsection*{\begin{center} \textbf{%(name)s} \end{center}}
+
+
diff --git a/templates/tex/sectionbody.tex b/templates/tex/sectionbody.tex
index 14822c5..1e8e777 100644
--- a/templates/tex/sectionbody.tex
+++ b/templates/tex/sectionbody.tex
@@ -1,5 +1,3 @@
-\subsection*{\begin{center} \textbf{%(nr)d} \end{center}}
-
  \noindent
 %(text)s
-\newline
+\vspace{1em}
diff --git a/templates/tex/sectionheading.tex b/templates/tex/sectionheading.tex
index a8bb1dd..b42bec0 100644
--- a/templates/tex/sectionheading.tex
+++ b/templates/tex/sectionheading.tex
@@ -1,3 +1,5 @@
 \phantomsection
 \refstepcounter{sectionnr}
 \label{section%(nr)d}
+\subsection*{\begin{center} \textbf{%(nr)d} \end{center}}
+
diff --git a/templates/txt/introsectionheading.txt b/templates/txt/introsectionheading.txt
new file mode 100644
index 0000000..f444a60
--- /dev/null
+++ b/templates/txt/introsectionheading.txt
@@ -0,0 +1 @@
+%(name)s
diff --git a/templates/txt/sectionheading.txt b/templates/txt/sectionheading.txt
index 32a9d09..44e9ecc 100644
--- a/templates/txt/sectionheading.txt
+++ b/templates/txt/sectionheading.txt
@@ -1,2 +1 @@
 %(nr)d
-
diff --git a/todo.org b/todo.org
index 3e36085..143a35f 100644
--- a/todo.org
+++ b/todo.org
@@ -1,4 +1,4 @@
-* TODO [33/59] [55%]
+* TODO [37/65] [56%]
 - [X] Debug output
 - [X] DOT output
 - [X] LaTeX output
@@ -36,13 +36,12 @@
 - [X] Book option to set max section number to use
 - [X] Quote strings to not break formatting.
 - [X] Include other templates from a template.
-- [ ] Template for book introduction (including rules etc)
+- [X] Template for book introduction (including rules etc)
   Sections with some markup (has number 0?) are added as chapters
   of introduction, otherwise formatted identical to other sections.
-- [ ] Inserting images
-- [ ] More formatting possibilities in sections
-  Look at existing gamebooks to get ideas.
-- [ ] Only accept specific characters in identifiers (eg section names)
+- [X] Inserting images
+- [X] HTML hide intro sections with link to display again
+- [X] Only accept specific characters in section names
   eg [a-z][a-z_0-9]+
 - [ ] Random pick of link to follow from a section.
 - [ ] Possibility to make predictable random numbers and shuffling for testing
@@ -73,6 +72,27 @@
 - [ ] Some way to insert optional random numbers table at end of book
 - [ ] Defensive removal of any weird unicode not handled by quoting.
 - [ ] Somewhat user-friendly error messages
+- [ ] More formatting possibilities in sections
+  Look at existing gamebooks to get ideas.
 - [ ] Document Gamebook format
 - [ ] HTML CSS
 - [ ] Higher level text-language for Gamebooks
+- [ ] BGG forum output (.bgg)
+- [ ] Make sure HTML output works with javascript disabled and in inferior browsers
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+