PostgreSQL is one of the most widely used open-source database managers with extensive academic and business use. This book focuses on the study of this software, bringing to the reader, its evolution, installation and administration, all this with practical examples, and many tips of use, without leaving the methodological technical aspect aside. The book may be of interest to both beginner who intends to have a robust PostgreSQL base in their various versions, with emphasis on versions 9.4, 9.5, 9.6 and 10, for the experienced Administrator who seeks to keep up to date.