From Powells.com
Forty-one: It's Mozart's last symphony. It's one of the lucky numbers of Euler. It's the atomic number of niobium. It's the number of times Paul McCartney sings "Let It Be" in the Beatles' famous song. And now it signifies Powell's long tenure as the nation's preeminent independent bookstore. Celebrate the anniversary and the legend by sporting this sharp T-shirt. (American Apparel: 100% cotton)