The present volume of PROGRESS IN OPTICS just like its thirteen predecessors, contains review articles covering recent researches in optics and related subjects. The first article, by J. C . Dainty, deals with the statistics of speckle patterns, i.e., with the statistics of the random variation of intensity that is produced when a highly coherent light beam is reflected or transmitted by an optically rough surface. In view of the increasing utilization of laser light it has become imperative to gain a good understanding of speckle phenomena. The article presents the most important aspects of the underlying theory. The second article, by A. Labeyrie, provides a review of modern high resolution techniques employed in optical astronomy. It gives an acco...