3 volume observers astronomy library - just £16.99 inc UK mainland delivery (publishers price £24.97).

For this observers 3 volume library set we've selected three of the best guide books available to help you get the most out of your telescope and precious observing time. Together this mini library offers over 495 expertly written pages, fully colour illustrated with photos, diagrams and maps. The library covers the Moon and stars as well as targets vastly beyond the solar system covering the deep-sky and includes a wide and beautifully illustrated range of bright easy to find nebulae and galaxies. All at a package price of just £15.99 inc UK mainland delivery - that's over 35% off the published price!

This 3 volume library is a perfect book set for the advancing telescope user and would make a great gift. All written in a clear and lucid style, providing guidance on making detailed observations of some of the Universe's most remote and exotic objects.

Library contents:

1. Moon Observer's Guide By Peter Grego (176 pages).

This practical guide for moonwatchers is suitable for the beginner and the more experienced observer. At the heart of the guide is a day-by-day lunar observing diary based on the progress of the terminator (the zone separating lunar day and night). Using sections of moon map for each day, the author explains what to look out for. The day's observing suggestions are divided into three sections, depending on whether you are observing with the naked eye, binoculars or a telescope. A chapter is devoted to the various methods of recording the moon - from pencil sketches to digital CCD images. The author also explains the best way to observe and record eclipses.

2. Star Finder By John Woodruff and Wil Tirion. (64 pages)

A month-by-month calendar for stargazers in the northern hemisphere. Twelve aspects charts show the position of stars and other celestial objects in both northerly and southerly directions for each month of the year. An introduction explains the basic facts of astronomy.

3. Guide to Stars and Planets Guide By Sir Patrick Moore. (256 pages)

Philip's Guide to Stars and Planets provides all the information you need to study the night sky with the naked eye, binoculars or a telescope. It includes a detailed Moon map and a complete atlas of the constellations, and is suitable for observers in both the northern and southern hemispheres. A straightforward and comprehensive handbook, it opens with chapters on the Moon, the Sun, the planets, the stars and galaxies, as well as information on astrophotography, telescopes and an explanation of the apparent movement of the night sky. It also comprises a full set of constellation maps, showing all stars visible to the naked eye as well as the brighter nebulae and galaxies. Each map is accompanied by a description of that constellation, pointing the observer to the most interesting stars and deep-sky objects in that area of the sky. Tables give the co-ordinates, magnitudes and distances of the brightest stars in each constellation.

The book concludes with a comprehensive glossary, and timelines of astronomy and space exploration.

Fully illustrated - 256 pages