This introduction to the thought of Basil of Caesarea surveys his theological, spiritual, and monastic writings, showing the importance of his work for contemporary theology and spirituality. It brings together various aspects of Basil's thought into a single whole and explores his uniqueness and creativity as a theologian. The volume engages specialized scholarship on Basil but makes his thought accessible to a wider audience. It is the third volume in the Foundations of Theological Exegesis and Christian Spirituality series, which critically recovers patristic exegesis and interpretation for contemporary theology and spirituality.