An acceptable if flat introduction, beginning with the similarities between men and chimps, as explained by their common ancestry, and ending with the sensible reminder that chimpanzee intelligence must be judged by how it works in their lives, not how like humans it makes them. (However, the statement that only ""two chimpanzees [Sarah and Washoe are mentioned] have been taught to communicate with humans"" doesn't give the species its due.) Elsewhere Napier provides a reasonable summary of chimpanzee reproduction (in detail), upbringing, development and social organization, but without Conklin's (1970) personalizing lift. And it's too bad that Bowness' dismal crayon (?) drawings are so undifferentiated, for the listing and illustration of different facial expressions and their meanings is an otherwise nice touch.