Book excerpt: The FIDIC Conditions of Contract for Construction and the Conditions of Contract for Plant and Design-Build (known as the 1999 Red Book and the 1999 Yellow Book) were first published in 1999 and have been used for a large number of contracts around the world. During 2005, FIDIC and the multilateral development banks cooperated to publish the MDB Harmonised Conditions of Contract for Construction. This book is a revised and extended edition of the authors earlier guides.