The matter's been raised here before, what to make of Spivak's MIT Press Categories book, and it's time now to report that there's a brief review of it out now (by YT) in the pages of Choice (the ALA reviewing venue), at: http://choiceconnect.org/webclipping/189448/9jewzj37yg3goc4x5mg-58v2kb5oj92f... For more about Choice itself, consult http://www.choice360.org/ Cheers, -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]