Every now and then some great people have come along to protect and revive Islam. This short and well-presented book highlights a small selection of specific personalities from our rich tradition who served as foundational hallmarks for the progress of Islam. Biographies in this book include Umar Ibn Abdul Aziz, Hasan al-Basri, al-Bukhari, Salah ad-Deen, Abu Hanifah, al-Nawawi and more.