This book was probably less enticing in a vacuum than I found it as a counterpart to Lindbergh's journal, We and Spirit of St. Louis. A completist cannot do without this work, while it probably offers little to the casual reader. It's a sketch and feels more like an outline for a book rather than a full work.
I first read this Autobiography about 25 years ago. It was interesting to go back and revisit some of Lindbergh's observations in light of the revelation about his secret family. In the book -- which is really a series of essays, internal discussions about air, space, science, human nature -- he discussed the urge to procreate and theorized that if stranded on an island, one would assimilate and become part of that culture, mate with the natives, mold a new life, with new mores and values. That passage and others take on a different meaning now that we know that he had a separate life.