and overview -- Sperm competition in humans -- Why are there so many tiny sperm? sperm competition and the maintenance of two sexes (1982) -- Sperm competition, male prudence, and sperm-limited females (2002) -- Classic readings in human sperm competition -- Human sperm competition (1984) -- "Kamikaze" sperm in mammals? (1988) -- Deformed sperm are probably not adaptive (1989) -- Elaboration of the kamikaze sperm hypothesis: a reply to harcourt (1989) -- Number of sperm in human ejaculates varies in accordance with sperm competition theory (1989) -- Do females promote sperm competition? data for humans (1990) -- Human sperm competition: ejaculate adjustment by males and the function of masturbation (1993) -- Human sperm competition: ejaculate manipulation by females and a function for the female orgasm (1993) -- Contemporary readings in human sperm competition -- No evidence for killer sperm or other selective interactions between human spermatozoa in ejaculates of different males in vitro (1999) -- Psychological adaptation to human sperm competition (2002) -- Semen displacement as a sperm competition strategy in humans (2004) -- Human female orgasm and mate fluctuating asymmetry (1995). Over the past decade, there has been a vast amount of interest in the subject of human sperm competition. This volume brings together, in one place, a key set of classic and contemporary papers that have examined possible adaptations to sperm competition in humans. In addition to classic papers by Robin Baker & Mark Bellis, it includes later work by other researchers - some developing their ideas, some refuting their findings. As is to be expected in any comparatively new area of investigation, there are conflicting findings and unresolved issues. This, however, should encourage rather than discourage future research in this field. This collection of papers is essential reading for students of evolutionary biology, evolutionary psychology, human sexuality and researchers considering conducting work in this area.