The BI-RADS classification was first published in 1993 by the American College of Radiology (ACR) for mammography, and updated in 2013. The aim of the BI-RADS (Breast Imaging Reporting and Data System) lexicon is to facilitate communication by homogenizing vocabulary; to standardize reading by proposing a framework for reports, in order to reduce confusion in the interpretation of breast abnormalities; and to classify breast abnormalities according to their probability of malignancy and propose appropriate management.This clear, educational book provides a detailed description of the BI-RADS mammographic lexicon, richly illustrated with demonstrative diagrams. This book will be of interest to all practicing physicians.