HTML bibliography

There are plenty of books on HTML. One should start with an HTML guide not thicker than 200 pages.
You can find a good one at W3 schools.

The W3 Consortium is the entity in charge for HTML standards. Therefore, for any HTML reference, go to its page

• HTML 4.01 Specification.
  We highly recommend you also take a bookmark of the "Index of elements", which is shown at the end of that page.