The WHO Classification of Head and Neck Tumours　is the ninth volume in the 4th Edition of the WHO series on histological and genetic typing of human tumors. This authoritative, concise reference book provides an international standard for oncologists and pathologists and will serve as an indispensable guide for use in the design of studies evaluating response to therapy and clinical outcome.

Diagnostic criteria, pathological features, and associated genetic alterations are described in a disease-oriented manner. Sections on all recognized neoplasms and their variants include new ICD-O codes, epidemiology, clinical features, macroscopy, pathology, genetics, and prognosis and predictive factors.

The book, prepared by 135 authors from 35 countries, contains more than 600 color images and tables, and more than 2700 references.

This book is in the series commonly referred to as the "Blue Book" series.