Literary heavyweights and an anniversary celebration for one of Washington’s most respected institutions are the highlights this week in your area bookstores. TUESDAY >>Rick Moody, author of The Ice Storm, has recently published his first proper novel in eight years. It’s called The Diviners, a expansive character study set against the backdrop of the end of the Clinton era that’s being described as his most ambitious work. Moody drops by Politics and Prose for a…