This book presents the proceedings of the meeting on "Enzymes of Lipid Metabolism" which took place April 18-22, 1977, at the Mont Ste. Odile convent in Alsace, France. The meeting was convened and co-chaired by P. Mandel and S. Gatt. L. Freysz was general secretary. They were assisted by an international advisory committee and a local organizing committee. The purpose of the meeting was to bring together scientists involved in research on a wide variety of aspects of lipid metabolism and who have a direct interest in the problematics on interacting enzymes with lipid substrates. The aim was to emphasize the latter aspect rather than common enzymological aspects such as extraction, purification, and protein structure. The procoeedings included several symposia and four "round-table" discussions. There was also a presentation of posters, which were exhibited during the entire duration of the meeting. All participants who presented lectures or posters were requested to summarize their findings, which were included in the book. Regretfully, the very fruitful discussions of the "round-tables" were not included, nor were those held in the informal atmosphere of the courtyards of the convent, the hiking paths in the Vosges mountains, and the bar. For the purpose of coherence, the editors decided not to adhere to the original order of the lectures. The papers in the book are grouped according to the classes of enzymes and the types of reaction which they catalyze.