Year after year, the Boulder Book Store stands out as a must-stop shop for anyone meandering the Pearl Street Mall. An intriguing layout makes browsers feel like they're in an old library, while the endless selection — books line every wall, table and empty space — could waylay a shopper for hours. There's just something about climbing the shop's steep, creaky stairs to the top floor, rounding a corner and picking out the perfect book from a floor-to-ceiling shelf that no amount of online ordering can match.