Book excerpt: With the correct diagnosis, it is easier to administer the best possible therapy. Written by internationally renowned experts, this outstanding atlas is designed to provide dermatologists with all necessary tools to diagnose nail disorders by clinical signs: The concise text is reader-friendly structured and highlights ‘key messages’ and ‘take home pearls’. For easy recognition, nail signs are lavishly illustrated by clinical photographs in 4-colour and schematic artwork. Dermatologists will find in this simple and quick guide the necessary support they need for their daily practice regarding diagnosis and management of nail disorders.