Book excerpt: This book will assist pathologists, hematologists, and oncologists in interpreting peripheral blood and bone marrow specimens quickly, easily, and accurately. Featuring more than 400 full-color illustrations, the book is a very complete survey of bone marrow diseases, including rare entities, and provides up-to-date information on constitutional and acquired disorders in both adults and children. This edition includes the latest information on hematologic and associated diseases, including many new disease descriptions, recent genetic and immunologic findings, and the current World Health Organization classification of hematolymphoid disorders. A companion Website will offer the fully searchable text and an image bank.