- ISBN: 9780761414544 | 0761414541
- Cover: Hardcover
- Copyright: 10/1/2002
This wide-ranging series now contains twenty-eight books: four titles in each of six strands addressing technology, earth science, space, government, American history and the human body. Compelling and up-to-date, each title in this open-ended series offers an abundance of timely information concerning topics of high interest to young readers.