Robert Toru Kiyosaki (Kiyosaki Tooru, born April 8, 1947) is an American businessman and author. Kiyosaki is the author of more than 26 books, including the international self-published personal finance "Rich Dad Poor Dad" series of books which has been translated into 51 languages and sold over 27 million copies worldwide. He has been criticized for advocating the practices of debatable legality perceived as "get rich quick" philosophy.