You’ve got your Lord-loving, Bible-toting friends and then you’ve got your God-decrying, Hitchens-quoting friends. And in an age of increased pressure to draw up battle lines, both political and spiritual, Marin resident Michael Krasny is brave enough to ask what all the fuss is about. Spiritual Envy: An Agnostic’s Quest is his 249-page love letter to those who’ve questioned the existence of God, come up with no hard evidence one way or the other and thrown up their hands in semi-satisfied surrender. The host of KQED 91.1-FM’s talk show Forum, Krasny tackles the big question in a poised book that’s part personal memoir, part dissertation and all courage. Try to convince your sparring friends to come along when Krasny appears on Tuesday, Nov. 23, at Book Passage. 51 Tamal Vista Blvd., Corte Madera. 7pm. Free. 415.927.0960.