The friend who lived next door. The friend who stood up to the bullies. The friend who was a bully. The friend who just happened to be invisible. The friend who taught. The friend who listened. The friend who wasn’t supposed to be a friend. The friend who just happened to be a dog. These are some of the friends you’ll meet in these funny, heartfelt, and friendship-filled stories. Pam Muñoz Ryan contributes, “The Friend Who Changed My Life.”