Due largely to the visual appeal of its three-dimensional imagery, holography has been one of the more fascinating branches of optics for Iboth academics and system designers since the production of the first high-quality laser holographic image in the early 1960s. Much of the effort in the early years was devoted to understanding holography theoretically and to making better-quality holograms. Those interested in practical application of the technique were concerned mainly with holography's imaging properties, but researchers, system designers, and industrial users were quick to realize that holography had important applications lin measurement, microscopy, nondestructive testing, and other fields. Many of these other applications were discussed in Optical Engineering's first. Applications of Holography Special Issue, published in September/October 1985. The present Special Issue, Applications of Holography II, continues that theme with a collection of papers concentrating on the practical features of holography and its diverse applications.