In this book, Caruso himself analyzes and describes his phenomenal breathing technique and how he practices it. The great tenor remarks on tone production; such faults as the "white voice", "throaty voice", and "goat voice"; the necessity of good diction; and also diet and the part superstition plays in certain singers' performances. He shows what not to do, as well as what to do, and brings the pupils back to first principles — the art of singing naturally. Based on the treatise "Caruso and Tetrazzini On the Art of Singing", this little but precious book, is  a "must read" for all vocalists and it is also an  historical reference for anyone who loves Opera. It also features some photos showing the process of Caruso's vocal production.