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Title: Very non technical, and very instructive
Review: Embryological development has been one of the big questions in biology for a long time, and there are now solidly supported theories of how it works. There are two "popular" books -- The Triumph of the Embryo, and this one. This is very non-technical, and more entertaining. Coen uses metaphors drawn from art to explain the ideas. The central idea is the distribution of "hidden colors" through the organism at various stages; the genes react to and interpret these "colors".One complaint: no color diagrams!
