skygiants

It talks very briefly about WWI bookdrives, but mostly in the context of how few books were remaining in military libraries by the time WWII rolled around, necessitating .... more book drives!

Hmm, I think the field guides you own might've come from a different project than the 'let's entertain the soldiers' one, which was run by publishers and consisted largely of pretty commercial books -- here's a complete list of ASEs printed. See any of yours?

(The ASEs in specific should also pretty recognizable because they were bound on the short end rather than the long end, and printed in two columns, to be able to fit more text on a page without making it tiny.)