The Case for Christ: A Journalist's Personal Investigation of the Evidence for Jesus
This is one of the sharpest evangelistic tools I have ever possessed. So much so, that this was the first book I actually bought for someone else, and I've read a ton of books. Lee Strobel, in his own personal journey from unbelief to belief, travels through an array of avenues to prove that Jesus is who he said he was and is. The Case for Christ touches on archaeology, history, science and more.