Heidi and Rolland Baker, founders and directors of Iris Ministries, have served as missionaries for more than thirty years to the world's poorest people. They both earned PhD degrees at King's College, University of London, where they planted a thriving church for the homeless. They have lived and ministered for many years in Mozambique. They also travel internationally, teaching about "passion and compassion" in the ministry of the gospel. They have written several books, including Always Enough, Expecting Miracles, and Learning to Love.