The book is now available in beta. Excerpts from two of the chapters are available online.
What's a beta book? Well in this case it's a lot like software---feature complete and ready for you to give it a spin.
The announcement from the Pragmatic Bookshelf: The Pragmatic Bookshelf | Desktop GIS "From Google Maps to iPhone apps, geographic data and visualization is quickly becoming a standard part of life. Desktop GIS shows you how to assemble and use an Open Source GIS toolkit. You’ll find strategies for choosing a platform, selecting the right tools, integration, managing change, and getting support. You’ll get a good introduction to using the many tools available so you can visualize, digitize, and analyze your own mapping data."