I agree Bach and Gann are the two best American authors for aviation books. Bach does get a little weird at times, just read Illusions to know what I mean. My favorites are the collection of short stories in, A gift of Wings and Stranger to The Ground.
Have you guys ever read any of Antoine de Saint-Exupery's works ? His childrens book, " The Little Prince " is quite famous, but others like, " Wind, Sand, and Stars ", and " Night Flight " are okay.
Typhoonpilot