PROMPT (PRactical Obstetric Multi-Professional Training) is an international organisation providing training tools and resources to support multi-professional maternity teams during obstetric emergencies. There is increasing evidence that authentic, local PROMPT training can have significant impact on improving outcomes for mothers and babies in the UK and internationally. This fourth edition of the manual summarises key evidence-based knowledge and care for a range of obstetric emergencies. It has 23 chapters covering emergencies that are both common and immediately life-threatening, and also features wider considerations such as civility, maternal mental health and equity and equality. There are new chapters on impacted fetal head, unplanned preterm birth and diabetes emergencies in pregnancy. Easy-to-follow PROMPT algorithms are featured throughout the manual, emphasising both emergency clinical care and teamworking, to help guide and support multi-professional maternity teams. The PROMPT Course Manual is essential reading for any healthcare professional providing maternity care.