essential reference for aviation enthusiasts and historians. The content of the book details the organization and logistics of the Circuit de l'Est, highlighting the participants and their aircraft specifications, as well as the prizes to be awarded throughout the competition. The program includes information about various aviateurs, such as Hubert Latham and Alfred Leblanc, along with descriptions of their planes and biographical elements that detail their accomplishments. Additionally, it outlines the specific rules governing the races, including how the events would be conducted, the criteria for winning prizes, and safety regulations. The presence of advertisements and flyers adds a cultural context to the celebration of aviation during this period, showcasing the excitement and public interest in early aeronautics. (This is an automatically generated summary.)