The Birth of British Airpower. Hugh Trenchard, the First World War, and the RAF
This book is partly biographic of Trenchard, partly about the formation of the RAF from the merging of the RFC and the RNAS. Both aspects were , of course, closely connected. So this is a good reference source about these events, and the man who many credit for them.
The book was originally published in the United States in 2024 by the Naval Institute Press.