In the continuing search for the answer to the question "Which genes make us human?" contributors offer 11 papers describing their research in the primate genome. Their topics include genome structures in primates and new concepts of evolution, complex genome comparisons, primate evolution, the differences between the human genome and that of the great apes, retroviruses as epigenetic mediators of phenotypic variation, genomic distributions of human characteristics, the influence of human endogenous retroviruses on cellular gene expression, the genome-wide search for human-specific retroelements, application of the expression of human endogenous retroviruses, the phylogeny of human endogenous and exogenous retroviruses, and the evolutionary aspects of human endogenous retroviral sequences and disease. Articles include their own resources and the editor provides a general index. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).