The Kulliyat (ar|الـكـلّـيـات في الـطـب|al-Kulliyāt fi al-ṭibb|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 "The Specificities of Medicine" (ar|جزئیات في الـطـب|al-Juzʾiyyāt fi al-ṭibb), which was written by his friend ibn Zuhr. The two collaborated, intending that their books complement each other.[2] Written between 1153 and 1169, the Colliget was eventually translated into Medieval Hebrew and Latin and became a widely used textbook in Europe until the 18th century.[3]