You can download a free sampler copy of Raspberry Pi Insider Guide by clicking on the link below.
This will allow you to download an eBook and/or a pdf file containing a full chapter from the book covering use of the new Desktop released with the 24 Dec 2014 update of the Raspbian distro.
In fact the eBook (ePUB) download contains 176 pages from the book including six complete chapters and sample segments from all the other chapters in the book. The pdf version contains just the chapter dealing with the Desktop (due to file size).
The files also include a 10% discount code for anyone wishing to purchase the eBook.