Would like advice

What book would you buy for someone who likes to read contemporary New Age-style self-help bestsellers, if you wanted to introduce that person to the Good News?

Half a century ago, the answer would have been Fulton J. Sheen's Peace of Soul. However, I need a book for someone who prefers mass-market books from the past five years or so (the newer, the better) and would not read anything with Jesus' name in the title.