Chapter 1, Why Dynamic Graphics? [http://pterodactyl.l2p.net/book/
php5image/page/ch01.html] gives you a strong motivation to use dynamic
graphics on your web sites.
Chapter 2, Raster vs. Vector Graphics [http://pterodactyl.l2p.net/book/
php5image/page/ch02.html] compares those two main kinds of computer
graphics.
Chapter 3, Coordinate System [http://pterodactyl.l2p.net/book/
php5image/page/ch03.html] explains the basic coordinate conception.
Chapter 4, Color Palettes [http://pterodactyl.l2p.net/book/php5image/
page/ch04.html] describes color palettes used in PHP.
Chapter 5, Graphics Primitives [http://pterodactyl.l2p.net/book/
php5image/page/ch05.html] talks about common shapes and fonts.
Chapter 6, Image Formats [http://pterodactyl.l2p.net/book/php5image/
page/ch06.html] introduces supported image formats.
Chapter 7, Graphics Support in PHP [http://pterodactyl.l2p.net/book/
php5image/page/ch07.html] lets you know what exact graphics features
are supported in PHP.