Much praise has already been given in reviews of the 4 preceding volumes of Handbook of the Mammals of the World (HMW) for their exceptional high publication quality, the outstanding and up-to-date text, and the great number of beautiful photographs and illustrations of mammals. All of this applies to the latest exquisite offering in this 8-volume series. HMW Volume 5, covering the Monotremes and Marsupials, is an impressive, weighty tome of 799 pages lavishly illustrated with 717 color photographs, 44 color plates, and 375 distribution maps that cover the world’s five monotreme and 350 marsupial species.