Using Firebird is not a new book. The IBPhoenix editors wrote it years ago for distribution on their Developer's CD, when Firebird was still at version 1.0. Since then we have seen the arrival of Firebird 1.5 and 2.0, and most of the book is now in serious need of updating. In 2005 the IBPhoenix company decided to open-source the entire 26-chapter manual and hand it over to the Firebird Project for upgrading and maintenance.

We would like to thank IBPhoenix here for making this work freely available.