The Abuse Of The Singing And Speaking Voice: Causes, Effects, And Treatment is a book written by Emile Jean Moure in 1910. The book is an in-depth analysis of the causes, effects, and treatment of vocal abuse in singers and speakers. The author highlights the importance of proper vocal technique and the dangers of overusing or misusing the voice. Moure discusses various factors that can lead to vocal abuse such as improper breathing, incorrect posture,...