The book "Our Legal Heritage: The First Thousand Years: 600 - 1600 King Ethelbert - Queen Elizabeth" by SA Reilly tells about the development of the legal system in England from the Middle Ages to the beginning of modern times. The author examines the legal and legislative principles and traditions that were formed during the first millennia, starting from the era of King Ethelbert and ending with the reign of Queen Elizabeth I. The book reveals key aspects of the legal system, judicial practice and the influence of folk customs on the creation of laws. The author brings the reader to an understanding of the development of legislation in England during important historical events that took place during the period from the Middle Ages to the beginning of the new era. "Our Legal Heritage" will be a useful source of knowledge for anyone interested in the history of law and jurisprudence.