 Recent textbooks include Elliott Sober’s Philosophy of Biology (Sober 1999), Kim Sterelny and Paul Griffiths’s Sex and Death: An Introduction to Philosophy of Biology (1999), Marjorie Greene and David Depew’s The Philosophy of Biology: An Episodic History (2004), Brian Gavey’s Philosophy of Biology (2007), Alexander Rosenberg and Daniel McShea’s Philosophy of Biology: A contemporary introduction (2008), and Peter Godfrey-Smith’s Philosophy of Biology (2014).Valuable edited collections designed to supplement such a text are Elliott Sober’s Conceptual Issues in Evolutionary Biology (Sober 2006) which collects the classic papers on core debates, David Hull and Michael Ruse’s The Philosophy of Biology which aims at a comprehensive survey using recent papers (1998), and the Cambridge Companion to the Philosophy of Biology (Hull and Ruse 2007), The Handbook of Philosophy of Biology (Matthen and Stephens 2007), and Blackwell Companion to the Philosophy of Biology (Sarkar and Plutynski 2008) which all consist of essays on key topics by leading authors. 