This book examines the role of Muhammad Ibn Abd al-Wahhab (1703-1792) and his successors in reconsolidating the religious principles of Wahhabism. It explains the role of the Saudi princes in crystallizing the core of the SaudiWahhabi political entity within their tribal society. Key to this explanation is the interrelation between sedentary and nomadic populations and the consequent impact on the development of Saudi political entities prior to the emergence of the Saudi Kingdom. Texts of Wahhabi scholars are compared with those of the early Hanbali scholars, pinpointing the new religious elements introduced to foster the Wahhabi creed. Discussion focuses on the first and second generations of Wahhabi scholars who maintained the Wahhabi creed with great success, keeping its hegemony as the main doctrine in Saudi Arabia, and developing a takfiri discourse (accusing people of being infidels) which by the nineteenth century had become the main religious and political weapon by which the Wahhabis mobil