Until last year, when we moved down the block, the Trover Book Shop on Capitol Hill was NR’s landlord in D.C. Our office was on the third floor of its building. A look at Trover’s storefront window was always instructive: It revealed which political books were on Washington’s mind. We used to pick up a thick stack of newspapers there every morning and haul them up the stairs. I made annual last-minute Valentine’s Day card purchases for my wife and, over the years, bought quite a few books and magazines. Sadly, Trover is closing.