Progress in Self Psychology, V. 20: Transformations in Self Psychology : Routledge : 9781138009844 : 1138009849 : 02 Dec 2014 : Transformations in Self Psychology highlights the manner in which contemporary self psychology has become, in the words of series editor William Coburn, "a continuing series of revolutions within a revolution."  Of special note are contributions that explore the bidirectional influences between self psychology and other explanatory paradigms.  The volume begins with Stern's thoughtful attempt to integrate self-psychological and relational perspectives on transference-countertransference enactments.  Fosshage and Munschauer's presentation of a case of "extreme nihilism and aversiveness" elicits a series of discussions that constructively highlights divergent perspectives on the meaning and role of enactment in treatment and on the so-called empathy/authenticity dichotomy.   The productive exploration of theoretical differences also enters in the redefinition of