This document is intended primarily for medical students, to introduce them to breast imaging. In this iconographic work, we begin with a reminder of the fundamental anatomy of the mammary gland and the axillary region, before developing the normal aspects of breast imaging. Knowledge of normal breast anatomy and radio-anatomical correlations is fundamental for all radiologists specializing in senology, in order to be able to recognize the normal mammographic, ultrasound breast image and differentiate it from pathological images.Messages to remember : Clinical examination, mammography, breast ultrasound and MRI are the main investigative tools used in breast exploration.