The Expression of the Emotions in Man and Animals Science" concluded that "although some parts are a little tedious, from the amount of minute detail required, there is throughout so much of acute observation and amusing anecdote as to render it perhaps more attractive to general readers than any of Mr. Darwin's previous work". Eric Korn, in the "London Review of Books", describes how the book was claimed, and he argues subverted, by Margaret Mead and her "sympathisers", and then presented afresh by Paul Ekman. Ekman had collected pro-Darwin, anti-Mead evidence, Korn wrote, for the universality of human facial expression of emotions. Darwin, suggests Korn, avoided unsettling the Victorian
The Expression of the Emotions in Man and Animals with engravings of the Darwin family's domestic pets by the zoological illustrator T. W. Wood as well as work by the artists Briton Rivière, Joseph Wolf and A.D. May. It also included portraits by the Swedish photographer Oscar Rejlander (1813–1875), anatomical diagrams by Sir Charles Bell (1774–1842) and Friedrich Henle (1809–1885), as well as illustrational quotations from the "Mécanisme de la physionomie humaine" (1862) by the French neurologist Duchenne de Boulogne (1806–1875). As a result of his domestic psychology experiments, Darwin reduced the number of commonly observed emotions from Duchenne's calculation of more than sixty facial expressions, to just six