"Overall this volume is a marvellous summary of the current state of the field, and importantly for students and newcomers to this area of study, also contains a wealth of suggestions for relevant future research. It is well organized, and highly readable." --D.J. Hosken in ANIMAL BEHAVIOUR (1999) "...an exceptional resource: an encapsulation of diversity, and in most cases a state of the art synthesis. This book will be heavily consulted by biologists at the cutting edge of research in this field, but at the same time can be read and enjoyed by anyone with even a passing interest in how evolution shapes animal diversity. There seems little doubt that it will become a new bible for students of sperm competition." --Ben Sheldon in IBIS (1999)"...my main reaction is to praise the immense achievement. Two of the chapters ... are expert minibooks in themselves. The book contains large appendices and tables of data; background reproductive physiology made intelligible for behavioural ecologists; intelligent suggestions for future research; and original analyses which have not been published elsewhere. It is a one-stop first-step guide for anyone wishing to understand, add to, subtract from (critically), or multiply (synthetically) research on sperm competition, and should be compulsory equipment in any lab that works on sexual selection." --Mark Ridley in NATURE"A major success of Birkhead & Moller's book Sperm Competition and Sexual Selection is to have captured something of the excitement being generated by advances in understanding the evolutionary significance of sperm competition. ...an essential reference text for anyone with more than a passing interest in sexual selection or reproduction." --HEREDITY