The Junior Woodchucks

Disney's fictional Scrooge McDuck universe, The Junior Woodchucks are the Boy Scout-like youth organization to which Donald Duck's nephews, Huey, Dewey and Louie, belong. The Junior Woodchucks are mentioned prominently in the Carl Barks comics.

The nephews always carry with them a copy of the Junior Woodchucks Guidebook, a fictional guidebook which is full of detailed and pertinent information about whatever country or situation in which Donald and the boys find themselves. This seems to approach Wikipedia in depth of its coverage, which is remarkable, as it is a small paperback book.