HTML is one of the first web publishing tools that became available. Because of its popularity there are millions of tutorials already available on the web. The following is a list of useful tutorials for everyone from the beginner to the advanced programmer. The tutorials are divided into four sections and all include a brief description of their usefullness.

At The Beginning

http://www.ncsa.uiuc.edu/General/Internet/WWW/HTMLPrimerAll.html
This is a good tutorial for a beginner who knows very little about html. It gives you a list of topics to choose from so if you already have a good start you can easily find answers to your questions.