Not sure if it can be found in the samples portion, but once you print (if you’re doing e-book) or receive your guide you will have a *Resources Needed* page. That contains ALL of the resources you’ll need (even the one’s listed optional) from videos, to books, to marbles, to a glass of water. It’s broken down by supplies you’ll need through out the whole study to the Creation Days themselves. Creation Day 6 seems to have the most books listed to be read. We found most of our books at amazon; only one or two from library.
Also, through out the guide (much like the others) there are reminders for upcoming lessons to either purchase/skip/substitute, which is so helpful. HTH
We’re on Day 6 right now, been working on it for quite awhile. Wish we hadn’t taken so long to get through it, but I wasn’t getting the whole CM thing at the time:)