When the 10th-century "Kamil as-sina"a" (or al-kitab al-malaki) of "Ali ibn al-"Abbas al-Magusi was adapted for a Latin-reading audience by Constantine the African in the late 11th century, the medieval West had the opportunity to use a text which covered the whole of medicine. But the 100-odd manuscripts suggest that Constantine"s "Pantegni" was put together over a considerable period of time, and chapters from other Latin and translated Arabic medical works were added to, or substituted, those of the "Kamil". This book is devoted to Constantine the African, shedding light on the School of Salerno and the formation of a medieval corpus in the High Middle ages.