Castle, Toby D.: - Toby D. Castle is an Australian-born educator turned author and practical pedagogical theologian with a passion for seeing followers of Jesus think well and live fully with a posture and practice towards human flourishing. With a master's in global leadership and a doctorate from Fuller Theological Seminary, Castle speaks, writes, and teaches practical theology and cultural competency to equip the people of God to live fully in today's day and age. He resides in the Bay Area, in Northern California, where he continues to speak, write, and teach in church and seminary contexts.