It's strange that he listed "Phone calls" as one of the reasons he loves working at the library. If you read the explanation, it's a wash in terms of coffee house v. library in this category.

One downside of the library is that it's often not convenient to grab a cup of coffee or snack. The main branch in SF has a cafe, but it's way in the basement. The Chinatown branch doesn't have any food or drinks.