Paul B. Janeczko made the Cybils Nonfiction Books (Middle Grade and Young Adult) shortlist with his book The Dark Game, so I brought it home for us to read. Organized in chapters for each war the US made spy strides in, it covers personalities, techniques, and risks as they changed over time. I relished the all-female Civil War chapter, although the book doesn't make a big deal about girl vs boy spies. And instead of the Navaho/WWII incident he brings up an earlier, more spontaneous use of Choctaw Code Talkers in World War I; a captain overheard Corporal Solomon Lewis talking with a friend, and soon Lewis was preventing German interception by organizing radio communication in Choctaw.
I learned a lot and had fun doing it. The sixth grader enjoyed it very much; the fourth grader hasn't nibbled yet. He's a tough nut to crack. B+
I think the link to Amazon would benefit the Cybils committee if you bought the book. If I did it right, I mean.