Simple, right? Kids who get free lunches in the school year often don’t eat in the summers. So a bunch of libraries are trying to fix that problem. “Librarians used to forbid any food or drink to avoid staining books and attracting pests. People who tried to sneak snacks in the stacks would be reprimanded. But in recent years, a growing number of libraries have had a major shift in policy: They are the ones putting food on the table.”