Witness to the Unchurched.. Here are some books I have perused... Surprising Insights from the Unchurched and Proven Ways to Reach Them The Unchurched Next Door: Understanding Faith Stages as Keys to Sharing Your Faith The Culturally Savvy Christian: A Manifesto for Deepening Faith and Enriching Popular Culture in an Age of Christianity-Lite Everyday Theology: How to Read Cultural Texts and Interpret Trends (Cultural Exegesis) For a book descriptions see the Missional Resource page These are only a few examples. I have not thoroughly perused these books so use your best judgment