In “Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae,” Robert J. Russell offers a comprehensive examination of the evolutionary history and taxonomic organization of Geomyinae, a subfamily of burrowing rodents known for their unique adaptations to a subterranean lifestyle. The book meticulously synthesizes morphological, genetic, and ecological data, employing a clear and analytical literary style that reflects a deep understanding of both evolutionary biology and systematics. Russell contextualizes his work within contemporary debates in mammalian phylogenetics, contributing significant insights into the evolutionary relationships and biogeography of pocket gophers, thus enriching the discourse in both zoology and ecological research. Robert J. Russell, a prominent figure in the field of mammalogy, has dedicated his career to the study of rodent evolution and taxonomy. His experiences working in diverse ecological settings, coupled with his academic training, have equipped him with a broad perspective on morphological variation and ecological adaptations. This book is the culmination of years of meticulous research, showcasing his commitment to advancing our understanding of this unique group of organisms. I highly recommend this seminal work to students, researchers, and enthusiasts of mammalian evolution and taxonomy. Russell's thoughtful analysis and clear presentation make this book an invaluable resource for anyone interested in the complexities of evolutionary biology, particularly those focused on North American rodent diversity.