This reference manual is aimed at a wide self-learner audience, wishing to master, in a short period of time, webpage design in HTML5 - the latest version of the HTML standard. The book is going to be of great help to a beginner web developer, as it contains many practical examples followed by detailed explanations. It may also prove useful to an experienced designer. The carefully elaborated Table of Contents will help the reader locate any particular item. The laconic and popular style of the manual has enabled the author to cover in a single work many programming topics including the subject and practical application methods typically covered in several books. The HTML5 programming language - along with CSS and JavaScript - is not a complex design language, thus it can be recommended both for first acquaintance and deeper study by high school and university students. It should be noted that the knowledge gained from this book can not only be used in webpage development but for the development of Metro style Windows Store applications for Windows 8 as well. The Microsoft Company has integrated HTML5, CSS and JavaScript into Visual Studio 2012. This strategic decision has made it possible to create applications that can be distributed through the Windows Store shop. The previous versions of Visual Studio 2008 and Visual Studio 2010 did not enjoy this capability.