The Kulliyat (full name: al-Kulliyat fi al-Tibb, "The General Principles of Medicine"), mostly known by its Latin translation as Colliget, is a medical encyclopedia written by the Andalusian polymath Averroes.^[1] The title of the book is opposite to al-Juz'iyyat fi al-Tibb ("The Specificities of Medicine"), written by his friend Ibn Zuhr, and the two collaborated with the intention of making each book complement the other.^[2] Written between 1153 and 1169, the Colliget was eventually translated into Hebrew and Latin and it became a widely used textbook used in Europe up until the 18th century.^[3]