From the 2nd edition of PostGIS in Action by Regina O. Obe and Leo S. Hsu

 

PostGIS In Action is a great book to learn how GIS servers function. Reading this book will give any reader insight into how best to provide map services for a wide audience.

—Marcus Brown, GIS Architect/Administrator, Enel Green Power

I answered so many questions with traditional SQL that, just for curiosity, I went in to see what difference PostGIS could make; now it seems to me that not enough questions were asked, at least not as many as I could think of to resolve with this new toolbox.

—Arnaldo Ayala, Software Architect, Consultores Informáticos S.R.L.

PostGIS in Action is a book that gets you swiftly started with PostGIS and gives you all the skills you need to get you going with GIS and helps you leverage your spatial data in new creative ways.

—Weyert de Boer

This book is the best introduction I've seen for engineers that want to get ramped up quickly and build expert knowledge to build advanced GIS applications.

—Ikechukwu Okonkwo, Lead Data Scientist, Orum.io

As a long time Postgres users I've always been curious how to make use of PostGIS but never knew where to start. This book provided that for me, and now I feel comfortable implementing Postgis for clients to help support their needs.

—Mike Haller, Senior Manager

An extraordinarily great book for the technology world of GIS. Truly learned a lot!

—DeUndre’ Rushon, CEO, DigiDiscover LLC