| Author | Gibbons |
| Book Type |
1: picture book |
| Book Type |
2: picture book |
| Category Description | juvenile nonfiction / technology / how things work-are made |
| Cover Type | Paperback |
| Dimensions | 6.9 in h | 8.7 in w | 0.2 lb wt |
| Genre | How Things Work |
| Genre | Informational |
| ISBN-10 | 64460290 |
| Description | 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) |