Personalized Librarians Rock Library Long Sleeve T-Shirt. Fun Librarians Rock Long Sleeve T-Shirt - Black with shelf full of books logo, a great thank you gift for a school or community librarian. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL