What is the best book on Modern Monetary Theory (MMT) that provides a comprehensive understanding of the concept and its implications?

One highly recommended book on Modern Monetary Theory (MMT) that provides a comprehensive understanding of the concept and its implications is "The Deficit Myth: Modern Monetary Theory and the Birth of the People's Economy" by Stephanie Kelton. This book explains MMT in a clear and accessible way, making it a great resource for those looking to learn more about this economic theory.