Understanding Space: An Introduction to Astonautics
(hardcover, 774 pages)
I purchased this book after noticing that it was a required text for several popular tertiary courses on Astronomy/Astrophysics. I read it from cover to cover (excluding the undergraduate questions/exercises), and learnt heaps. Very informative about rocket technologies, launching/managing satellites, orbits, planning missions, space systems engineering. Also has plenty on space technology history and brief profiles on lots of actual space missions.
See some more details here:
http://www.collinsbooks.com.au/LSC-U.../9780077230302
$40 plus postage. (Sale Pending)
The Next Step: Finding and Viewing Messier's Objects
(hardcover, 352 pages)
I've owned several Messier books, and this is easily the best I have owned. It is a charming mix of history (about Charles Messier and his contemporaries), messier observing advice, and excellent info and images for all of the Messier objects.
See Amazon.com info and sample pages here:
http://www.amazon.com/Next-Step-Find...sier+next+step
Also see review on Cloudy Nights here:
http://www.cloudynights.com/item.php?item_id=1452
$40 plus postage. (SOLD)
About Time (by Professor Paul Davies)
(paperback, 316 pages)
An great little book about the physics of time, time paradoxes, contemporary theories and unanswered questions.
Cover is a bit worn, but in otherwise good condition.
$10 posted within Australia. (Sale Pending)
Please send a PM if interested.