This Saturday is National Independent Bookstore Day, and small bookstores in the Twin Cities are celebrating in a special way this week. Rain Taxi, a local literary magazine, is putting on their annual Independent Bookstore Passport. Starting on Wednesday, you can pick up the passport at one of the 28 participating stores. Each visit earns a stamp, and there are some pretty neat rewards for book lovers. Black Garnet Books in Saint Paul’s Midway neighborhood is one of the participating bookstores. Owner Dionne Sims joined MPR News host Cathy Wurzer ahead of an undoubtedly busy few days.For more store crawls and events around the state and region — including Moorhead, St. Cloud, Austin, Rochester, Duluth, Grand Rapids and Grand Marais — check out Indie Bound’s list.