Gerard W Kelly: 2 books

Can you multiply 362 x .5 quickly in your head? Could you readily calculate the square of 41? How much is 635 divided by 2½? Can 727,648 be evenly divided by 8? If any of these questions took you more than a few seconds to solve, you need this book. Short-Cut Math is a concise, remarkably clear compendium...

This compilation, by an international grouping of scholars, focuses on the nature of Caribbean rock art or rock graphics and makes clear the region's substantial and distinctive rock art tradition. Thorough and comparative, it includes data on the history of rock graphic research, the nature of the...