Book excerpt: Hair disorders have become a central social and psychological issue and patients now have increasing demands and expectations. Written by world-renowned experts, this lavishly illustrated book provides the latest scientific aspects of hair biology, up to date knowledge on hair diagnosis and treatment options as well as hair removal and restoration techniques. The content is divided into three sections: basic aspects of hair growth; hair and scalp disorders; and fotoepilation, surgery and hair cosmetics. In addition, coverage is enhanced with unique sections on hair in different ages and in art, on ethnic hair and in forensic investigations.