A. Mark Smith Books by the Author Previous slide in carousel Optical Magic in the Late Renaissance Alhacen on Refraction Alhacen on Image-Formation and Distortion in Mirrors Alhacen on the Principles of Reflection Alhacen's Theory of Visual Perception (First Three Books of Alhacen's De Aspectibus), Volume One--Introduction and Latin Text Alhacen's Theory of Visual Perception (First Three Books of Alhacen's De Aspectibus), Volume Two--English Translation Ptolemy and the Foundations of Ancient Mathematical Optics Ptolemy's Theory of Visual Perception Descartes's Theory of Light and Refraction Next slide in carousel