The Philosopher's Dictionary, third edition
“Martin's Dictionary is one that professionals can rely on and recommend to students with confidence. But Martin also presents philosophy in a witty, engaged manner; the reader gets the rewarding sensation of a discipline in motion, an ongoing conversation between past, present, and future.” (Edrie Sobstyl)“ ... clearly [the dictionary] best-suited for introductory philosophy students.” (Dialogue)“As interesting to the general reader as it is useful for the student.” (David Copp)“Very valuable ... an excellent first place to look for explanations of philosophical concepts.” (Thomas Hurka)