Camp letters are interesting, because it's one of the few times that kids communicate with their parents using the written word. Also, I doubt these letters (or the camp experience) would be as fun if email was allowed at camp.
Here are a few sample letters from the book:
More after the jump.
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Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects