The risqué artwork in this engaging volume shows what happens when artists in the squeaky-clean fields of comic books, comic strips, and animation color their drawing boards blue. Here are rare private sketches by such renowned talents as Milton Caniff (Steve Canyon), George Herriman (Krazy Kat), Al Capp (Li’l Abner), Mort Walker (Beetle Bailey), Johnny Hart (B.C.), Joe Shuster (Superman), and Bob Kane (Batman). Some, like Carl Barks (Donald Duck), Hank Ketchum (Dennis the Menace), and Dan De Carlo (Archie), are represented by naughty gags drawn for girlie magazines; Alex Raymond (Flash Gordon) and Cliff Sterrett (Polly and Her Pals), by pinups for the troops of World War II. Perhaps the most unexpected entry is a vision of Wonder Woman skinny-dipping by the chaste Amazon princess’ first limner, Harry G. Peter. Most of the drawings are pretty tame, though Wally Wood’s fabled Disneyland orgy, created for Paul Krassner’s counterculture magazine The Realist, and the image accompanying a foreword by R. Crumb, who’s nobody’s idea of a clean cartoonist, definitely aren’t. --Gordon Flagg