The Post Office Book: Mail and How It Moves

Do you ever mail a letter and wonder what happens to it after you drop it in the box? Read all about the post office and learn how letters are weighed, sorted, transported, culled, canceled, coded, binned, boxed, and sorted once again. Find out how people and machines work together to deliver the letters you send.

Author Biography: Gail Gibbons, a master of children's non-fiction (ALA Booklist), has created over one hundred entertaining, eye-catching books that explain how things work. She lives in Corinth, Vermont.