Baldwin boosters, Baldwin skeptics -- Baldwin and his many effects / David J. Depew -- Baldwin effects and the expansion of the explanatory repertoire in evolutionary biology / Stephen M. Downes -- Between Baldwin skepticism and Baldwin boosterism / Peter Godfrey-Smith -- The Baldwin effect: a crane, not a skyhook / Daniel Dennett -- Multilevel selection in a complex adaptive system: the problem of language origins / Terrence W. Deacon -- Postscript on the Baldwin effect and niche construction / Peter Godfrey-Smith, Daniel Dennett, and Terrence W. Deacon -- Evolution, development, and the individual acquisition of traits: what we've learned since Baldwin / Celia L. Moore -- Baldwin and beyond: organic selection and genetic assimilation / Brian K. Hall -- On having a hammer / Susan Oyama -- Beyond the Baldwin effect: James Mark Baldwin's "Social Heredity," epigenetic inheritance, and niche construction / Paul E. Griffiths -- The Baldwin effect in the age of computation / Ruben R. Puentedura -- Role of predator-induced polyphenism in the evolution of cognition: a baldwinian speculation / Scott F. Gilbert -- Baldwin and biosemiotics: what intelligence is for / Jesper Hoffmeyer and Kalevi Kull -- The hierarchic logic of emergence: untangling the interdependence of evolution and self-organization / Terrence W. Deacon -- Emergence of mind and the Baldwin effect / Bruce H. Weber