Columbia students’ relationship with neighborhood businesses has been tumultuous to say the least: We had a noncommittal Empanada Joe’s experiment, and don’t get us started on our messy Tomo break-up. Fortunately, Book Culture, with its recent expansion to 115th and Broadway, promises a little stability the others just couldn’t give us. How has the place succeeded where others have not? Excellent management? Prime location? That warm, Columbia feeling of students who would feel more at home in a textbook store than in a restaurant or bar?