diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 61a0280..5283605 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -95,6 +95,7 @@
 			<li>Modified <a href="general/errors.html">show_404()</a> to send 404 status code, removing non-CGI compatible header() statement from error_404.php template.</li>
 			<li>Added set_status_header() to the <a href="general/common_functions.html">Common functions<a> to allow use when the Output class is unavailable.</li>
 			<li>Added is_php() to <a href="general/common_functions.html">Common functions</a> to facilitate PHP version comparisons.</p> 
+			<li>Added 2 CodeIgniter "cheatsheets" (thanks to DesignFellow.com for this contribution).</li>
 		</ul>
 	</li>
 </ul>
diff --git a/user_guide/images/codeigniter_1.7.1_helper_reference.pdf b/user_guide/images/codeigniter_1.7.1_helper_reference.pdf
new file mode 100644
index 0000000..85af7c8
--- /dev/null
+++ b/user_guide/images/codeigniter_1.7.1_helper_reference.pdf
Binary files differ
diff --git a/user_guide/images/codeigniter_1.7.1_helper_reference.png b/user_guide/images/codeigniter_1.7.1_helper_reference.png
new file mode 100644
index 0000000..15a7c15
--- /dev/null
+++ b/user_guide/images/codeigniter_1.7.1_helper_reference.png
Binary files differ
diff --git a/user_guide/images/codeigniter_1.7.1_library_reference.pdf b/user_guide/images/codeigniter_1.7.1_library_reference.pdf
new file mode 100644
index 0000000..13cb360
--- /dev/null
+++ b/user_guide/images/codeigniter_1.7.1_library_reference.pdf
Binary files differ
diff --git a/user_guide/images/codeigniter_1.7.1_library_reference.png b/user_guide/images/codeigniter_1.7.1_library_reference.png
new file mode 100644
index 0000000..7f054f9
--- /dev/null
+++ b/user_guide/images/codeigniter_1.7.1_library_reference.png
Binary files differ
diff --git a/user_guide/nav/nav.js b/user_guide/nav/nav.js
index 925f647..b0778cd 100644
--- a/user_guide/nav/nav.js
+++ b/user_guide/nav/nav.js
@@ -31,6 +31,7 @@
 		'<ul>' +
 			'<li><a href="'+base+'overview/getting_started.html">Getting Started</a></li>' +
 			'<li><a href="'+base+'overview/at_a_glance.html">CodeIgniter at a Glance</a></li>' +
+			'<li><a href="'+base+'overview/cheatsheets.html">CodeIgniter Cheatsheets</a></li>' +
 			'<li><a href="'+base+'overview/features.html">Supported Features</a></li>' +
 			'<li><a href="'+base+'overview/appflow.html">Application Flow Chart</a></li>' +
 			'<li><a href="'+base+'overview/mvc.html">Model-View-Controller</a></li>' +
diff --git a/user_guide/overview/at_a_glance.html b/user_guide/overview/at_a_glance.html
index 15d3049..73a8665 100644
--- a/user_guide/overview/at_a_glance.html
+++ b/user_guide/overview/at_a_glance.html
@@ -163,7 +163,7 @@
 &nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 <a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
-Next Topic:&nbsp;&nbsp;<a href="features.html">CodeIgniter Features</a>
+Next Topic:&nbsp;&nbsp;<a href="cheatsheets.html">CodeIgniter Cheatsheets</a>
 </p>
 <p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2009 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
 </div>
diff --git a/user_guide/overview/cheatsheets.html b/user_guide/overview/cheatsheets.html
new file mode 100644
index 0000000..4c726ac
--- /dev/null
+++ b/user_guide/overview/cheatsheets.html
@@ -0,0 +1,83 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title>CodeIgniter Cheatsheets : CodeIgniter User Guide</title>
+
+<style type='text/css' media='all'>@import url('../userguide.css');</style>
+<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
+
+<script type="text/javascript" src="../nav/nav.js"></script>
+<script type="text/javascript" src="../nav/prototype.lite.js"></script>
+<script type="text/javascript" src="../nav/moo.fx.js"></script>
+<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
+
+<meta http-equiv='expires' content='-1' />
+<meta http-equiv= 'pragma' content='no-cache' />
+<meta name='robots' content='all' />
+<meta name='author' content='ExpressionEngine Dev Team' />
+<meta name='description' content='CodeIgniter User Guide' />
+
+</head>
+<body>
+
+<!-- START NAVIGATION -->
+<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>CodeIgniter User Guide Version 1.7.1</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
+
+
+<!-- START BREADCRUMB -->
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td id="breadcrumb">
+<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+CodeIgniter Cheatsheets
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
+</tr>
+</table>
+<!-- END BREADCRUMB -->
+
+<br clear="all" />
+
+
+<!-- START CONTENT -->
+<div id="content">
+
+<h1>CodeIgniter Cheatsheets</h1>
+
+<h2>Library Reference</h2>
+
+<div><a href="../images/codeigniter_1.7.1_library_reference.pdf"><img src="../images/codeigniter_1.7.1_library_reference.png" width="600" height="195" border="0" alt="CodeIgniter Library Reference" /></a></div>
+
+<h2>Helpers Reference</h2>
+<div><a href="../images/codeigniter_1.7.1_helper_reference.pdf"><img src="../images/codeigniter_1.7.1_helper_reference.png" width="600" height="196" border="0" alt="CodeIgniter Library Reference" /></a></div>
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="at_a_glance.html">CodeIgniter at a Glance</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="features.html">CodeIgniter Features</a>
+</p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2009 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
+</div>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/user_guide/overview/features.html b/user_guide/overview/features.html
index 7d9875b..530ee90 100644
--- a/user_guide/overview/features.html
+++ b/user_guide/overview/features.html
@@ -107,7 +107,7 @@
 
 <div id="footer">
 <p>
-Previous Topic:&nbsp;&nbsp;<a href="at_a_glance.html">CodeIgniter At a Glance</a>
+Previous Topic:&nbsp;&nbsp;<a href="cheatsheets.html">CodeIgniter Cheatsheets</a>
 &nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 <a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
diff --git a/user_guide/toc.html b/user_guide/toc.html
index e89ddb9..0055ef8 100644
--- a/user_guide/toc.html
+++ b/user_guide/toc.html
@@ -82,6 +82,7 @@
 <ul>
 	<li><a href="./overview/getting_started.html">Getting Started</a></li>
 	<li><a href="./overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
+	<li><a href="./overview/cheatsheets.html">CodeIgniter Cheatsheets</a></li>
 	<li><a href="./overview/features.html">Supported Features</a></li>
 	<li><a href="./overview/appflow.html">Application Flow Chart</a></li>
 	<li><a href="./overview/mvc.html">Model-View-Controller</a></li>