Part Ð 2 (page 440-919) of the book ÒWhere the Secret is HiddenÓ , Collected Essays, 1979-2011 containing 106 essays written over 30 years on the 20th Century cultural avant-garde including Duchamp, Cage, Mail Art, Fluxus, DiY, zine and artist publishing, international cultural networking, performance art, rubber stamps and other artistic mediums the mainstream considers marginal. Each essay is illustrated with the publication in which it first appeared or an associated item.