I have read with a lot of interest the book “GIS for Web Developers”.
First of all we have to admit that “GIS field” is a wide one and cannot be condensed in one book, so we have to consider the big efforft from the authors in trying to present all the relevant aspect of this field. If you’re new to the field (like me when I have read that book) you’ll find a lot of useful informations at once, but - obviously - not too deeply.
Anyway the Pragmatics’ high-qualitiy level is confirmed.
A final point: the book appears too “buddy-oriented”: a lot of anectods and funny sentences that - from my perspective - fill the blank and nothing more.