I saw this tongue-in-cheek advertisement on Facebook:

All kidding aside, what resources on evangelism do you recommend, gentle reader? Two recommendations from me for starters: J.I. Packer’s Evangelism and the Sovereignty of God and Will Metzger’s Tell the Truth. Any others?

I just say “no,” and plan to burn (or freeze, or rot, or whatever) in Hell.
Apparently you’ve never met Jack Bauer.
“Powerful Evangelism for the Powerless” – Jack Miller
Pray for more of the Holy Spirit. Luke 11:13: If ye then, being evil, know how to give good gifts unto your children: how much more shall [your] heavenly Father give the Holy Spirit to them that ask him? That is the best resource because He knows when we are to share and when not to cast pearls before swine.