Bill Kroen is the author of the national bestseller, THE GOLF TIP A DAY CALENDAR, which has sold well over one million copies to date. In addition, Bill is the author of GOLF; HOW GOOD DO YOU WANT TO BE? (golf psychology and instruction), GOLF DYNAMICS (golf instruction), THE WHY BOOK OF GOLF (National Sports Bestseller), THE COMPLETE WHY BOOK OF GOLF (ebook), SO, YOU THINK YOU KNOW GOLF (golf trivia), and YOUR PUTTER OR YOUR WIFE (golf humor).