As announced a week ago, the ebook version of “LaTeX Beginner’s Guide” written by me is available for download today, March 4, 2015.
There’s some background information on LaTeX-Community.org and specifically in a forum thread.
Some details, simply copied from what I provided to the publisher earlier:
About This Book
Use LaTeX’s powerful features to produce professionally designed texts
Install LaTeX; download, set up, and use additional styles, templates, and tools
Typeset math formulas and scientific expressions to the highest standards …