There are books you can purchase about HTML, but since things change so quickly they are often out of date by the time they are published. Actually, the best source of information for creating Web documents is the Web itself. Here's a list of just a few Web sites where you can find more information:

• NCSA Beginner's Guide to HTML
  An introductory guide from the folks that helped create the WWW.
• The HTML Writers Guild
  Good collection of resources.
• Webmaster's Reference Library
  Detailed information and tips for advanced users.
• Web Developer's Virtual Library
  Information on a variety of topics.

• Yale Style Manual
  An excellent guide to web design issues.
• lynda.com
  Graphics and design issues.
• Current Issues in Web Usability
  Collection of very good columns on web usability.