I loved Ed Emberly’s drawing books as a kid, and I’m stoked that my kids enjoy them now too. MC must have been going through a box of childhood books, because he found this skateboarding thumbprint in an early pressing of Ed Emberly’s Great Thumbprint Drawing Book. he also has one called the Great Fingerprint Drawing book. I’m not sure if they are completely different or the Fingerprint version is an expanded version encompassing the the thumbprint version, but they are both still in print. The thumbprint version dates back as early as 1977, although I ‘d swear it was from the late 60′s. I had one of these as a kid too, it inspired me to make a comic strip of a thumbprint superhero. I was especially into his Drawing Book of Weirdos, as did MC if this comic is any indication.