Offers Programs That Facilitate Rapid Astronomical Calculations, Which are Written in a Common Subset of BASIC & Run on the Apple

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A distinguished dance critic offers an enchanting introduction to the art of ballet As much as we may enjoy Swan Lake or The Nutcracker, for many of us ballet i

Praised by The Practical Sailor as "a first-class piece of work," Susan P. Howell's Practical Celestial Navigation was developed for Mystic Seaport's navigation

A step-by-step guide to predicting and calculating the positions of stars, planets, the sun, the moon, and satellites using a personal computer and high school