This comprehensive new reference work is the first of its kind on the Ismailis and presents a summary of the findings of modern scholarship on the Ismaili Shia Muslims and different facets of their heritage. The dictionary covers all phases of Ismaili history as well as the main doctrines of the community. It includes an introductory chapter which provides a broad historical survey of the Ismailis followed by alphabetical entries on all major aspects of the community such as key figures institutions traditions and doctrines. It also contains a chronology genealogical tables a glossary and a substantial bibliography. This book is an excellent access point for students researchers and anyone wanting to know more about the Ismailis.