With over 100 000 copies sold since first publication this is one of the most popular astronomy books of all time. It is a unique guidebook to the night sky providing all the information you need to observe a whole host of celestial objects. With a new spiral binding this edition is even easier to use outdoors at the telescope & is the ideal beginner's book. Keeping its distinct one-object-per-spread format this edition is also designed for Dobsonian telescopes as well as for smaller reflectors & refractors & covers Southern hemisphere objects in more detail. Large-format eyepiece views positioned side-by-side show objects exactly as they are seen through a telescope & with enhanced directions updated tables of astronomical information & an expanded night-by-night Moon section it has never been easier to explore the night sky on your own. Many additional resources are available on the accompanying website www.cambridge.org/turnleft.