This authoritative book offers an up-to-date introduction to the world of Geographical Information Systems. Fully revised an updated it is designed to be easy to use for students at all levels, from undergraduates to professionals retraining in GIS. The book focuses on the practical application of GIS, and considers how the technology works.
A good rundown of the subject and its challenges and requirements. Definitely looking dated in many places; while it's clear that updates have been made to the content over time, it requires a substantial rewrite to bring it into the context of the industry as it exists today.