{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Secrets of Mental Math: The Mathemagician's Secrets of Lightning Calculation & Mental Math Tricks","author_name":"Arthur Benjamin, Michael Shermer","thumbnail_url":"https://www.ebooknetworking.net/books/143/528/big1435288734.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1435288734.html\">Secrets of Mental Math: The Mathemagician&#039;s Secrets of Lightning Calculation &amp; Mental Math Tricks</a>","width":400,"height":300}