The Inequality of Man - H. J. Eysenck

Psychologist Hans J. Eysenck examines individual differences in intelligence, asking how much variation in intellectual ability can be attributed to heredity and how much to environment. Drawing on research into IQ testing, genetics, education and social class, he presents his arguments about the measurement and distribution of intelligence. First published in 1973, the book became part of wider and often controversial debates about intelligence, nature versus nurture and social inequality. Eysenck’s conclusions have been heavily disputed, making this a historically significant and contentious work in the study of intelligence and human differences.