Pocket Ref by Thomas Glover

The Pocket Ref by Thomas Glover is an amazing book. In a world where we just look up anything we want on the internet, it's nice to know that there are alternatives to finding good information.  This handy reference book is a wealth of knowledge in the palm of your hand. If the network is down or you are away from reliable service the Pocket Ref has everything you wanted to know and lots of things you didn't know you wanted to know between its covers.