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. Children's Books of 1982 (Library of Congress)
【作者简介】
Gail Gibbons, author of more than one hundred books, is the winner of the Washington Post/Children’s Book Guild Award for her overall contribution to children’s nonfiction literature. Called a “master of picture book nonfiction” by ALA Booklist, Ms. Gibbons has a special talent for making complex subjects understandable and entertaining for young readers.
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