Lulu.com (http://www.lulu.com) is the obvious choice because they have reasonable prices and there is no minimum quantity to order – get just one book if you wish.
Once you have your content in PDF format, it's just a one step process to get a physical book printed.
Stop thinking that it's a long drawn out process and a complicated process. It's not.
Go to: www.lulu.com
Lulu.com is a full-featured online Print-On-Demand service that will print one book or 10,000 – depending upon your specific need.
Because there are no minimum orders it's perfect for the Info Product creator whose just getting started and wants to have a physical book to promote.
The book could be sold separately.
The book could be combined with audios and/or videos as a “kit” or Home Study Course.
The book could be used for a “Best Seller” promotion on Amazon or Barnes and Noble.
Because you can order 1 book or 1,000 books Lulu.com can grow as you and your business grows.