The other day I bought the following book from All Books 4 Less at my local shops.
http://www.fishpond.com.au/Books/Pra.../9781408157466
Got it only for $10! I highly recommend this book. It covers everything from the history of Astronomy to Modern Astronomy, Planets and Stars, Star formation, Telescope types, Astrophotography, Moon charts as well as sky charts for both the Northern and Southern Hemisphere and more!
A bargain for $10! Star Charts are a fantastic help!
Enjoy!