The author, marcus du sato is a professor of mathematics at oxford university. I met him er at the yogash from shivann, the yoga srom in bahamas. He was sitting and intently listening to my talks on approcan buti then we became good friends. And later i visited him at his home in london too. He recommended this new book of his. So i bought the book. It's called thinking better, the art of the short cut in life and in math. In math and in life. The art of theShort Cut by marcus de satoi (Simon & Schuster), £16.99,. p&p