Dr Tim Chester is a director of the Porterbrook Institute which provides affordable, Bible-college level training for church leadership and missional church in the context of your ministry (www.porterbrookinstitute.org). He is a leader of The Crowded House, a church planting network (www.thecrowdedhouse.org). He blogs at http://www.timchester.co.uk. He has previously been Research and Policy Director for Tearfund UK and a part-time lecturer in missiology. He is the author of a number of books and series editor of The Good Book Guides (The Good Book Company). He is married with two daughters.