The author of Rich Dad Poor Dad, Robert Kiyosaki, has expressed his confidence that the price of bitcoin will keep going up. Rich Dad Poor Dad is a 1997 book co-authored by Kiyosaki and Sharon Lechter. It has been on the New York Times Best Seller List for over six years. More than 32 million copies of the book have been sold in over 51 languages across more than 109 countries.