This book continues the fine tradition of summarizing the important publications of the past year that relate to pathology. The editorial comments of the author, as usual, help place the contributions of these papers into proper perspective. After reading this book, one has the feeling that few new techniques are described, and few new areas of interest have been opened up during the past year. The single special article by Dr. Robert Schrek, entitled Fashions in Cancer Research, is an interesting analysis of the trends in cancer research over the years. He explores the controversy over the role of experimental tumors, the furor over genetic or environmental factors in experimental cancers, and the current interest in viral etiology of neoplasia. The possible effects of these fashions in research on the outcome of the quest for solution to the "cancer problems" are considered.