Directing Animation
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Network Jungle
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The Tabernacle--Shadows of the Messiah
Its Sacrifices, Services, and Priesthood »

Star Trails
50 Favorite Columns from Sky & Telescope »

What Every Jewish Person Should Ask
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Potomac Jungle
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How To Play The Opening In Chess
How to Play the Opening in Chess »

Observing Variable Stars
This guide to star watching is aimed at the enthusiast. It begins with advice on binoculars and telescopes and how and when to observe stars effectively. Thi... »

Comets
Creators And Destroyers »

David Levy's Guide To Observing And Discovering Comets
David Levy has held a lifelong passion for comets and is one of the mostsuccessful comet discoverers in history. In this book he describes theobserving techn... »