You can order your copy here
Here's the synopsis:
The Discworld is a flat world balanced on the backs of four elephants* which, in turn, stand on the back of a giant turtle. And like any world, the Discworld is not always predictable - in fact, it's distinctly UNpredictable, what with rivers you could skateboard across (if they weren't so knobbly) and points of raw magic that'd turn a body inside out soon as look at it .. For safety's sake, you need a guide to lead you through the highways and byways of this extraordinary world - how else will you find out where to get the best curry in Ankh-Morpork**, or if the rumours about XXXX, the lost continent, are true?*** * There were once five. ** Klatchian Curry Gardens, corner of God Street & Blood Alley. PS Don't use the kitchen entrance. *** They are.