Free PostgreSQL books

Practical PostgreSQL
Comprehensive new volume shows you how to compile PostgreSQL from source, create a database, and configure PostgreSQL to accept client-server connections. Discover quickly why this open source database is such a great open source alternative to proprietary products from Oracle, IBM, and Microsoft.

PostgreSQL: Introduction and Concepts
This free online PostgreSQL book assumes no background in databases at all, but still moves quickly, going beyond mechanics and into the applications of simple commands in working database applications. Highlights common pitfalls and offers time and trouble-saving tips.

PostgreSQL Manual
This PostgreSQL Manual can be downloaded in pdf and html formats. It is divided into following sections: Tutorial, The SQL Language, Server Administration, Client Interfaces, Server Programming, Reference, Internals and Appendixes.

PostgreSQL: Das offizielle Handbuch (PostgreSQL: The official manual)
PostgreSQL: Das offizielle Handbuch (PostgreSQL: The official manual) brings the official documentation of the PostgreSQL software as a book in German translation.