Colby's Bookstore, located in Roberts Union, sells textbooks, other books, office and computer supplies, greeting cards, and "Colbiana" (t-shirts, hats, chairs, etc.). The bookstore is open from 8:30 a.m. to 5 p.m., Monday through Friday, and from 10 a.m. to 2 p.m. on Saturday during the regular semester, with extended hours on special weekends and shorter hours during holiday and vacation periods. Summer hours are 7:30 a.m. to 4 p.m., Monday through Friday.