Volume 1 deals with principles, methods, and approaches. In recent years, enormous advances have been made in such areas as phylogenetic analysis, paleoecology and evolutionary theory and philosophy. The contributions in this first volume present the state of the art in these fields, provide succinct introductions to them and reflect the many ways in which they interact.
As human beings are primates, Volume 2 is devoted to primate origins, evolution, behaviour, and adaptive variety. Its emphasis is on integration of fossil data with the vast amount that is now known of the behaviour and ecology of living primates in natural environments.
Volume 3 deals with the fossil and molecular evidence for the evolution of Homo sapiens and its fossil relatives (the family Hominidae or subfamily Homininae, according to taste, a matter that we have left to the individual contributors).