Book excerpt: General Principles of Sacramental Theology addresses a current lacuna in English language theological literature. Bernard Leeming’s highly respected book Principles of Sacramental Theology was published more than sixty years ago. Since that time, there has been a noted decrease, especially in English language sacramental theology, in treatments of the basic topics and principles – such as the nature of the sacraments of signs, sacramental grace, sacramental character, sacramental causality, sacramental intention, the necessity and number of the sacraments, sacramental matter and form, inter alia – which apply to all of the sacraments. This book will be of use in seminary, graduate, and undergraduate courses. The sacraments play an irreplaceable role in pursuing a Universal Call to Holiness that is so central to Vatican II’s teaching.