This edition of Protecting Groups by Philip Kocienski is a valuable addition to the synthetic chemist's bookshelf and will find an appreciative audience. It contains an enormous amount of valuable and highly organized information. It is beautifully and clearly written; a pleasure to read. The introductory chapter provides a sophisticated overview of the application of protecting groups in contemporary syntheses. At the heart of the book are seven chapters which deal authoritatively and thoroughly with the protection of the various core functional groups, from carbonyl to amino. The closing epilog rounds off the presentation with an insight into the realities of synthetic practice and twenty-five problems for people who love to understand chemistry. sakriti opis