The Arab mathematician, astronomer and physicist, Ibn al Haytham (or Alhazen) made noteworthy contributions to the principles of optics and visual perception. He is known best for having written the seven-volume Book of Optics, which was later translated into Latin. His work went on to influence European scholars. The ideas he expressed in his book were heavily impacted by Ptolemy’s Optics. In 1572, the seven volumes were printed by Friedrich Risner, a German mathematician, as part of a collection called Opticae Thesaurus.