You can buy the printed book alone on Amazon or almost any other book seller. Manning's thinking is that the eBook costs them nothing to distribute so if you bu

You can buy the printed book alone on Amazon or almost any other book seller. Manning's thinking is that the eBook costs them nothing to distribute so if you buy the print book, they might as well give you a bonus to make you even more happy by giving you the eBook. Source: I have worked with them.