This book presents a personal selection of the major works of de Gennes. It comes complete with afterthoughts by the author on his main papers, explaining their successes or weaknesses, and the current views on each special problem. This collector's volume contains all the important works of de Gennes which have made a lasting impact on our understanding of condensed matter, and serves as a reference book for all condensed matter physicists and physical chemists. It also bears testimony to the genius of a remarkable man.