Book excerpt: Whether you are interested in the career of an individual air-man or woman, researching medals awarded to a pilot or crew member or just want to know more about a particular squadron or operation, this book will point you in the right direction. Assuming that the reader has no prior knowledge of the air force, its history or organization, Phil Tomaselli explains which records survive, where they can be found and how they can help you in your research. He also recommends resources available online as well as books and memoirs. Each era in air force history is described, from the pioneering days of early aviation and the formation of the Royal Flying Corps in the First World War to the creation of the Royal Air Force, its operations during the Second World War and its postwar development. The author explains the evolving organization of the air force in each period. He also provides pointers and examples which should help researchers find the records of units and bases that individuals served in.