Add the beginning of a manual.

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diff --git a/doc/api.texi b/doc/api.texi
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--- /dev/null
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+@menu
+* Basics::                      Initialization and other basic things.
+* Window Management::           Working with the window system.
+* Input::                       Keyboard, mouse, joystick input.
+* Events::                      Asynchronous event handling.
+* Surfaces::                    Software rendering.
+* Rendering::                   Hardware accelerated rendering.
+* Images::                      Loading and saving images.
+* Sound::                       Sound effects and music.
+* Fonts::                       Truetype and bitmap font rendering.
+@end menu
+
+@node Basics
+@section Basics
+
+@example
+(use-modules (sdl2))
+@end example
+
+@deffn {Scheme Procedure} sdl-init [@var{subsystems}]
+Initialize the SDL library.  This must be called before using any
+other SDL procedure.
+
+@var{subsystems} is an optional list of symbols that specifies the
+subsystems to initialize.  All subsystems are initialized by default.
+The possible flags are @code{timer}, @code{audio}, @code{video},
+@code{haptic}, @code{game-controller}, and @code{events}.
+@end deffn
+
+@deffn {Scheme Procedure} sdl-quit
+Quit all activated SDL subsystems.  This procedure should be called
+upon all exit conditions.
+@end deffn
+
+@deffn {Scheme Procedure} sdl-version
+Return a three element list containing the major, minor, and patch
+version of the linked SDL library.
+@end deffn
+
+@deffn {Scheme Procedure} sdl-ticks
+Return the number of milliseconds since the SDL library was
+initialized.
+@end deffn
+
+@node Window Management
+@section Window Management
+
+@menu
+* Windows::                     Window manipulation.
+* OpenGL::                      OpenGL contexts.
+@end menu
+
+@example
+(use-modules (sdl2 video))
+@end example
+
+@node Windows
+@subsection Windows
+
+@node OpenGL
+@subsection OpenGL
+
+@node Input
+@section Input
+
+@menu
+* Keyboard::                    Keyboard input.
+* Mouse::                       Mouse input.
+* Joysticks::                   Joystick input.
+* Game Controllers::            Game controller input.
+@end menu
+
+@node Keyboard
+@subsection Keyboard
+
+@node Mouse
+@subsection Mouse
+
+@node Joysticks
+@subsection Joysticks
+
+@example
+(use-modules (sdl2 input joystick))
+@end example
+
+@node Game Controllers
+@subsection Game Controllers
+
+@example
+(use-modules (sdl2 input game-controller))
+@end example
+
+@node Events
+@section Events
+
+@example
+(use-modules (sdl2 events))
+@end example
+
+@node Surfaces
+@section Surfaces
+
+@example
+(use-modules (sdl2 input surface))
+@end example
+
+@node Rendering
+@section Rendering
+
+@example
+(use-modules (sdl2 input render))
+@end example
+
+@node Images
+@section Images
+
+@example
+(use-modules (sdl2 input image))
+@end example
+
+@node Sound
+@section Sound
+
+@example
+(use-modules (sdl2 input mixer))
+@end example
+
+@node Fonts
+@section Fonts
+
+@example
+(use-modules (sdl2 input ttf))
+@end example
diff --git a/doc/fdl.texi b/doc/fdl.texi
new file mode 100644
index 0000000..9c3bbe5
--- /dev/null
+++ b/doc/fdl.texi
@@ -0,0 +1,505 @@
+@c The GNU Free Documentation License.
+@center Version 1.3, 3 November 2008
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
+@uref{http://fsf.org/}
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@end display
+
+@enumerate 0
+@item
+PREAMBLE
+
+The purpose of this License is to make a manual, textbook, or other
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diff --git a/doc/guile-sdl2.texi b/doc/guile-sdl2.texi
new file mode 100644
index 0000000..353c2d1
--- /dev/null
+++ b/doc/guile-sdl2.texi
@@ -0,0 +1,186 @@
+\input texinfo   @c -*-texinfo-*-
+@c %**start of header
+@setfilename guile-sdl2.info
+@settitle Guile-SDL2
+@c %**end of header
+@copying
+Copyright @copyright{} 2016  David Thompson @email{davet@@gnu.org}
+
+@quotation
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3
+or any later version published by the Free Software Foundation;
+with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+A copy of the license is included in the section entitled ``GNU
+Free Documentation License''.
+
+A copy of the license is also available from the Free Software
+Foundation Web site at @url{http://www.gnu.org/licenses/fdl.html}.
+
+@end quotation
+
+The document was typeset with
+@uref{http://www.texinfo.org/, GNU Texinfo}.
+
+@end copying
+
+@titlepage
+@title Guile-SDL2
+@subtitle Using Guile Scheme bindings for SDL2
+@author David Thompson
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+@end titlepage
+
+@c Output the table of the contents at the beginning.
+@contents
+
+@ifnottex
+@node Top
+@top Guile-SDL2
+
+@insertcopying
+@end ifnottex
+
+@c Generate the nodes for this menu with `C-c C-u C-m'.
+@menu
+* Introduction::                About Guile-SDL2.
+* Installation::                Installing Guile-SDL2.
+* API Reference::               High-level Scheme interfaces to SDL2.
+* Contributing::                Guidelines for hacking Guile-SDL2.
+
+* Copying This Manual::         The GNU Free Documentation License and you!
+* Index::
+@end menu
+
+@c Update all node entries with `C-c C-u C-n'.
+@c Insert new nodes with `C-c C-c n'.
+
+@node Introduction
+@chapter Introduction
+
+Guile-SDL2 provides both low-level and high-level Guile Scheme
+bindings to the Simple DirectMedia Layer version 2.0 C library.  The
+bindings are written in pure Scheme by using Guile's foreign function
+interface.  In addition to the SDL2 core library, bindings are also
+provided for the SDL2_image, SDL2_mixer, and SDL2_ttf add-on
+libraries.
+
+While Guile-SDL2 does provide direct, low-level bindings for the SDL2
+C API, its main feature is exposing high-level interfaces that Scheme
+programmers will find comfortable to use, hiding away the ugly,
+foreign C details.  This manual will cover only the high-level API.
+@pxref{API Reference}
+
+As of this writing, the bindings are useful, but @emph{incomplete}.
+If you find an SDL2 feature that you cannot use with Guile-SDL2, let
+us know and maybe send a patch! @pxref{Contributing}
+
+@node Installation
+@chapter Installation
+
+Guile-SDL2 is available for download from its website at
+@url{dthompson.us/projects/guile-sdl2.html}.  This section describes
+the software requirements of Guile-SDL2, as well as how to install it.
+
+The build procedure for Guile-SDL2 is the same as for GNU software
+packages, and is not covered here.  Please see the files
+@file{README.org} and @file{INSTALL.org} for additional details.
+
+@menu
+* Requirements::                Software needed to build and run Guile-SDL2.
+@end menu
+
+@node Requirements
+@section Requirements
+
+Guile-SDL2 depends on the following packages:
+
+@itemize
+@item @url{https://gnu.org/software/guile, GNU Guile}, version 2.0.11 or later;
+@item @url{https://libsdl.org, SDL2}, version 2.0.0 or later;
+@end itemize
+
+Guile-SDL2 has the following optional dependencies:
+
+@itemize
+@item @url{https://www.libsdl.org/projects/SDL_image, SDL2_image}, version 2.0.0 or later;
+@item @url{https://www.libsdl.org/projects/SDL_mixer, SDL2_mixer}, version 2.0.0 or later;
+@item @url{https://www.libsdl.org/projects/SDL_ttf, SDL2_ttf}, version 2.0.0 or later;
+@end itemize
+
+@node API Reference
+@chapter API Reference
+
+@include api.texi
+
+@node Contributing
+@chapter Contributing
+
+@menu
+* Getting the Source::          Getting good with Git.
+* Submitting Patches::          Patches welcome!
+* Chat::                        Let's talk!
+@end menu
+
+@node Getting the Source
+@section Getting the Source
+
+Guile-SDL2 is developed using the Git version control system.  The
+repository can be cloned with the following command:
+
+@example
+git clone https://git.dthompson.us/guile-sdl2.git
+@end example
+
+To build the source code from a Git checkout, run the following:
+
+@example
+./bootstrap
+./configure
+make
+@end example
+
+To start a Guile REPL with a pre-configured load path for using
+Guile-SDL2, use the @code{pre-inst-env} script:
+
+@example
+./pre-inst-env guile
+@end example
+
+@node Submitting Patches
+@section Submitting Patches
+
+Patches generated by @code{git format-patch} may be sent to
+@email{davet@@gnu.org}.  Thanks in advance!
+
+@node Chat
+@section Chat
+
+The maintainer of this library hangs out in the @code{#guile} channel
+on @url{irc.freenode.net}, so help and general discussion may be found
+there.
+
+@node Copying This Manual
+@appendix Copying This Manual
+
+@menu
+* GNU Free Documentation License::  License for copying this manual.
+@end menu
+
+@c Get fdl.texi from http://www.gnu.org/licenses/fdl.html
+@node GNU Free Documentation License
+@section GNU Free Documentation License
+@include fdl.texi
+
+@node Index
+@unnumbered Index
+
+@syncodeindex tp fn
+@syncodeindex vr fn
+@printindex fn
+
+@bye
+
+@c guile-sdl2.texi ends here