This is a terrific read in which the author describes the power of apologetics to move him from atheism to belief in Jesus.
I summarize a book by Philip Sampson, in which he debunks the myths of Galileo, Darwin, the environment, missionaries, sexuality, and persecution of witches.
The title says it all. Many good authors here reflect on the value of apologetics.
Ravi Zacharias (no relation, unfortunately) is one of my favorite apologists. In this Q/A session he discusses the problems we are having as Christians in this culture and how we can respond to attacks on our beliefs.