A: It is a personal preference whether you like to use a book or software to wheel your lotto numbers. Some people prefer the book because they do not have a computer or are not experienced with one. Others prefer the software because they don't want to write out the wheeling combinations by hand. The software also offers a larger number of wheels than the book. To see a basic description of the different software programs and books and what you need to know to determine what to buy, go to our lottery products guide.