Encyclopedia of Science & Invention

Here is a four-volume set that explains the achievements of inventors and scientists and discusses in detail the inventions and developments that have changed the course of history.

Reading level: Gr 5 & up
Blackbirch Press

7.5" x 9" hardcover.
Photos and illustrations. Cross references and time lines.

BBSI4.Set of 4, $168.00.
Clearance. $78.00

Young People's Encyclopedias

An impeccably researched and lavishly illustrated series designed to cover all essential areas of human knowledge.

Reading level: Gr 4-6
Peter Bedrick Books

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