There are books about business and industry,
foreign cultures and travel,
and books about military history,including a novel described as "the liveliest, gayest, most delightful in years" by the San Francisco Call-Bulletin.
There are studies of popular sports, hobbies and trends,
and books to cozy-up with in bed.
There is self-improvement
and even politics and history:
(which came with its own bookmark, possibly by a member of the Peekin' Place Club of Lake County, Florida)