This edited collection gathers together erudite and considered contributions from Salman Akhtar, Cobi Avshalom, Brett Clarke, Mali Mann, Gila Ofer, Thomas Ogden, Louis Rothschild, Batya Shoshani, Michael Shoshani, Naama Shoshani-Breda, Ann Smolen, Donald Spence, Richard Waugaman, Thomas Wolman, and Vamik D. Volkan. Fifteen distinguished authors bring together their vast experience as psychologists, psychiatrists, psychoanalysts, social workers, and psychotherapists to present a nuanced and in-depth investigation into the concept of truth. Divided into five parts, the book begins with a thoughtful discussion from Brett Clarke on what truth means and its role in psychoanalysis. It then moves into the realm of development, looking at truth from the viewpoint of children, adolescents, and adults. Stepping from development to culture, the works of Shakespeare, Heidegger and Freud are brought into the debate alongside the relationship of truth with individual and large-group psychology. Next come four chapters taking 'truth' into the clinical realm, grounding theory in practice. The book is brought to completion by an epilogue from Louis Rothschild answering the vital question: 'Truly, what does all this mean?' A must-read book for practising clinicians and academics in the mental health and humanities fields that investigates the wide range of theories on truth, how they have changed over the years, and their practical applications.