It includes an example that uses CSV, GDAL/OGR VRT, QGIS, and fTools to figure out if I was in danger of being buried in a volcanic ash fall (not much danger but sounds dramatic).

        

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.”