Sam Chan (PhD, Trinity Evangelical Divinity School; MBBS, University of Sydney) is a public evangelist with City Bible Forum in Sydney, Australia, where he regularly shares the gospel with high school students, city workers, doctors, and lawyers. He is the author of the award-winning book Evangelism in a Skeptical World and regularly speaks at conferences around the world on the practice of evangelism in a post-Christian culture. Sam blogs at espressotheology.com.