Teach-worthiness: ••/4
Codebreakers is about intelligence efforts in the twentieth
century, especially in world war II, when the Allies tried to break codes on
Germany's "enigma" and Japan's "Purple" and
"JN25." The story is largely historical and does not explain
the mechanics of how the codes were broken except for some general description
that, "in the English language the letters used most frequently are E and
T followed by ..." The absence of technical information is missed,
but the historicity is fascinating on its own.