The symposium and workshop on Reduction and Interpretation of Interferograms was held 11 Jan. 1978 at Ft. Lauderdale, Fla. Sponsored by ASTM Subcommittee F01.02 on Lasers of Committee F01 on Electronics, the symposium was arranged by the subcommittee's Section on Optically Pumped Lasers. D. H. Liebenberg, Los Alammos Scientific Laboratory, and A. H. Guenther, Air Force Weapons Laboratory, presided as chairman of the symposium and also served as editors of this publication.