Harry Vissering - Zeppelin: The Story of a Great Achievement (1922)
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Zeppelin-ophiles unite! This fairly brief book covers most anything you might want to know about zeppelins from design and construction to maintenance to commercial operations. There are charts of distances and usage, images of the rooms guests occupied, details about planes that serviced the zeppelins. Did you know they only could take 24 passengers at a time? I need to read more carefully to find out ticket prices because they couldn't have been cheap. As it turned out, economics was a stumbling block for zeppelins and the fate of the Hindenburg the decade after this book pretty much sealed their fate.