As it gears up for its annual event on April 23, World Book Night U.S. released an interactive map that displays how many givers there are per zip code. The organization also compiled a list of all 2,330 WBN host stores and libraries.

"This is a major new tool for local media, a boost for the participating stores and libraries, and just great fun for the givers," said WBN U.S. executive director Carl Lennertz.