This book gives an understanding of Hyper Text Markup Language. This book consists HTML documents – Text, tables, frames, links and forms. These parts are collected from different books on HTML, and from computer Journals and Magazines for the benefit of the students. This is prepared as a text for the E - Commerce of the of the University of Delhi and Royal University of Bhutan Courses. Today HTML course is offered in almost all Colleges, Universities, institutes of business and vocational studies, and in high schools. We hope this book will prove useful to students aspiring to learn HTML.