Digital Books for Hard Copy Customers?

If we bought the comprehensive hard copies, do we have access to digital books? The reason I ask is because I am going to visit family for the week of Thanksgiving, and don't really want to risk taking my books and losing or ruining them (many small children in my family). Thanks in advance!

(Also, if it's simply a link I am missing on the website, please let me know. I've tried to search around a bit, but no luck.)