Geoff Stray is an acknowledged expert on the Mayan Calendar and all matters pertaining to 2012. In this pocket-sized volume - which I shall be buying as a stocking filler this year - Geoff covers a different ancient calendar on each page with detailed illustrations to clarify his points. It is easy to read and beautifully produced in brown and cream monochrome. There are very few other people in the world who have researched this subject as deeply as Geoff - and I can highly recommend both this book and his magnum opus, 'Beyond 2012'.