If you are a WordPress user, then the WordPress Visual Cheat Sheet should be definitely useful for you. WordPress Visual Cheat Sheet is the new document that contains a practical reference guide to WordPress 2.8. WordPress uses various tags in its codes and themes and if you do no have any idea on these tags, the cheat should be able to help you. This cheat sheet contains the full reference guide to WP Template Tags with detailed descriptions and sample code.
This cheat sheet was developed and released by Antonio Lupetti of Woorkup.com. We would say this cheat sheet is a must have for all WordPress users, especially theme developers.
You can view the cheat sheet here before downloading. The document contains 5 pages and includes all the tags used in WordPress ordered according to various categories like comment tags, author tags, date and time tags etc.
Download WordPress 2.8 Cheat Sheet (PDF Format)
what a nice guide