This book discusses the roles of the prominent Muslim scholar, Shaykh al-Islam Wan Sulaiman Wan Sidek in the development of Islam in Kedah. He could be regarded as a Muslim revivalist in Kedah during the first half of the 20th century. He made significant contributions to the growth of Islam in Kedah especially in the development of madrasah. This book also presents the biography of Wan Sulaiman Wan Sidek. It focuses on various aspects of Wan Sulaiman' contributions on the growth of Islam in Kedah especially on the state's public administration, administration of Islam and Islamic education.