The book is a massive 572-page volume that brings together Sicher's professional output, including transcribed lectures from her time in both Europe and the United States. Because Sicher was a dynamic public speaker but wrote relatively little for formal publication, these transcriptions are vital for understanding her "meaty," direct, and clinical style. This book is a posthumous compilation that preserves the lectures, articles, and clinical insights of one of Alfred Adler's most significant proteges. Lydia Sicher (1890-1962) was a physician and psychologist who played a critical role in the development and survival of Individual Psychology, particularly after she was left in charge of the Viennese Society of Individual Psychology when Adler moved to the United States.