When the first edition of this manual was published in 1995, it quickly established itself as a reference work. In the intervening period, the rapid developments that have occurred in both ultrasound equipment and investigative techniques, including use of ultrasonography in the therapeutic domain, have necessitated publication of a totally new edition of this manual. This manual is in two parts. Volume 1, a basic reference text covers ultrasound techniques, recognition of normal anatomical features and differential diagnosis. Volume 2 covers paediatric examinations, gynaecology and musculoskeletal examinations, as well as therapy. These new publications, which extensively cover modern diagnostic and therapeutic ultrasonography, will be of great use to medical professionals in both developed and developing countries.