Volume 85 represents the ninth single chapter volume to be produced in Organic Reactions' 72-year history. The original authors, Drs. Shaughnessy and DeVasher, have compiled an enormous (and growing) literature and distilled it into an extraordinarily useful treatise on all aspects of the copper-catalyzed amination process. Given the myriad types of nitrogen-based nucleophiles and various ligand sets and reaction conditions, the authors have done an outstanding job of identifying the best options for various permutations of donor and acceptor. This comprehensive treatment of so many different options constitutes a dream field guide for the perplexed chemist who wants to know how best to approach the formation of a C-N bond in a target structure and whether copper or palladium catalysis is recommended.