The benefit of foetal heart-rate monitoring is the subject of fierce debate. This practical guide is an updated edition of the original Swedish work by the Ingemarssons, and has been adapted for an international audience by John Spencer, editor of "Fetal Monitoring". The book was written in the belief that correct use and interpretation of the technique is of vital importance in establishing its value in surveillance. The authors first discuss the physiological mechanisms influencing foetal heart-rate and the general principles of monitoring. They then describe the patterns found in a range of clinical situations, using numerous illustrations of traces to aid recognition and interpretation. Throughout the book they draw upon up-to-date research findings, as well as personal experience, to encourage rational use of the technique. This text should be of interest to obstetricians in training, midwives and all staff on the maternity unit.