This book is an introduction to holographic interferometry - a field of holography having a great number of important and practically useful ap- pl ications. It is intended for special ists working in the field of optics and holography, and also for students of the relevant specialities. At present, a gr eater and greater number of mechanica 1 engi neers, tur- bine designers, testers of diverse equipment, biologists, crystallographers, and so on have to do with holographic interferometry. To allow these spe- cialists, who are comparatively far from optics, to master the subject too, the main...