Kristen A. Graham writes: “The Philadelphia School District, with 200-plus schools, employed 176 certified school librarians in 1991. Today, that number is fewer than 10. Philadelphia has the worst ratio of school librarians in the country. Building 21’s new homespun library has no budget, no librarian, and was built entirely with used and new books donated or purchased cheaply at yard sales or through online marketplace sites. Though it lacks computers, a digital circulation system, or any of the sophisticated bells and whistles that are the hallmarks of better-resourced schools, the Building 21 library feels like a gift, says Simone Burrell, a recent graduate.”