Hi,

The truth about Html5

Html5 missing manual

The Essential Guide to CSS and HTML web design.

These  3 books are pretty much useful to get a deep understanding about Html.You should also practice on some softwares,which will be pretty useful.

Hope this helps.

Hello aspirant, some of the best books to learn HTML are-

• Web Design. the Evolution of the Digital World 1990-Today
• HTML5: The Missing Manual (Paperback)
• HTML5 for Web Designers (Paperback)
• Build Your Own Website The Right Way Using HTML & CSS (Paperback)
• HTML 5 Black Book : Covers Css3, Javascript,XML, XHTML, Ajax, PHP And Jquery (Paperback)

Thank you.