The book is for readers who want to use model computational les for fast learning of the basics of optics. In the Second Edition, Matlab, Mathematica and Maples les have been added to the Mathcad les on the CD of the First Edition. The applications, given at the end of les to suggest different points of view on the subject, are extended to home work problems and are also on the CD of the Second Edition. While the book is suited well for self learning, it was written over several years for a one semester course in optics for juniors and seniors in science and engineering.Theapplicationsprovideasimulatedlaboratorywherestudentscan learn by exploration and discovery instead of passive absorption. The text covers all the standard topics of a traditional optics course, incl- ing: geometrical optics and aberration, interference and diffraction, coherence, Maxwell’s equations, wave guides and propagating modes, blackbody radiation, atomic emission and lasers, optical properties of materials, Fourier transforms and FT spectroscopy, image formation, and holography. It contains step by step derivations of all basic formulas in geometrical and wave optics.