on 16 September 2014
A tiny little pocket book with tons of basic and ground source information about the predictable movements of our highly mechanized solar and galaxy system. Lots of numbers and calculus but that's how math things are.
More importantly is that this lit book as well as the author shows a big respect for all those human wizards who here on earth dared to look up continuously and trace down the celestial heavens. Here can be found highly regarded past experiences of ancient cultures and their wisdom during long gone eras which are now folded in this pocket book.
So to speak, you can recall into your own memory, valuable and valid knowledge of human experience of past 3000+ years, in 3 or 4 hours with this Geoff Stray's book.