Don’t be fooled by the modesty of the title—this volume covers a vast scope, starting from philosophical ideas about doubt and certainty, moving through object relations theory and psycholinguistics, and arriving at very specific and well-grounded recommendations for the psychodynamic therapy of Obsessive-Compulsive Disorder. Along the way, Moshe Marcus and Steven Tuber describe a psychoanalytically informed view of OCD which offers an empathic and nuanced understanding of how and why people suffer from this crippling disorder.