First aid is defined as a set of simple actions and measures that, in the event of a sudden threat to life or impairment of human health, limit the extent and consequences of this threat or impairment. Every citizen is obliged by law to provide first aid within the limits of his abilities and powers, as long as this does not endanger his health or life. Proper and timely first aid at the scene of the incident enables the involvement of other links in the chain of care for the affected person and is an integral part of the treatment of injuries and sudden illnesses. The university textbook is divided into 23 chapters. The text is supplemented with illustrative images. Important moments are marked by Cave in the book. The aim of the book is to help non-medical healthcare workers become familiar with the provision of first aid and follow-up pre-hospital care. Selected chapters are expanded with basic information from anatomy. The goal was to write a brief, concise, memorable and readable overview of the provision of first aid. The textbook is intended for students in a study program for non-medical health professions, e.g. students of the fields of study General Nursing, Pediatric Nursing, Midwifery, etc.