There are countless books on evangelism. A good place to start is with:
Just Walk Across the Room by Bill Hybells (Zonderman 2006)
You could also look at:
Sharing Jesus in a New Millennium by Rob Frost (Scripture Union 2000)
Evangelism in a Spiritual Age (Church Publishing House 2005)
Evangelism - which way now by Booker and Ireland (Church Publishing House 2003)
or countless others!
If you would like to get involved in Love Cornwall and get to grips with bringing the Gospel to your own community but feel overwhelmed and don't know where to start contact the District Evangelism Team. We can't do it for you but we are here to help!