With over 100,000 copies sold since the first publication, this is one of the most popular astronomical books of all time. It is a unique guide to the night sky, providing all the information you need to observe a full range of celestial bodies.

With a new helical spiral, this version is easily used outdoors in the telescope and is the ideal novice book. While maintaining its distinctive shape, each version is also designed for Dobsonian telescopes, in addition to small reflectors and fractions, and covers the purposes of the southern globe in greater detail.

Large-scale lens views, placed side-by-side, show objects just as seen through the telescope, with improved directions, updated astronomical information tables, and an enlarged night section at night, it was never easier to explore the night sky yourself. Many additional resources are available at www.cambridge.org/turnleft..