For more than 30 years Dr. David Garrison has been a missionary pioneer in understanding church planting among unreached peoples. He is the author of several books including The Nonresidential Missionary (1990), Church Planting Movements (2004), and A Wind in the House of Islam (2014). His books have been translated into more than 20 languages. In addition, Dr. Garrison has published two new books: Ying and Grace Kai's Training for Trainers and Superplan, a Journey into God's Story, by Chris Clayman, the co-founder of Global Gates. Dr. Garrison is the executive director of Global Gates, which seeks to reach the world's least-reached peoples through global gateway cities.