It's an NVidia product, and so far I quite like their sandboxing and policy system. I'm still getting used to the download and upload flow though, it makes it a bit more annoying to read diffs and commit (unless you let it git as a part of the policy)

They may have the book physically or, even better, have a subscription to O'Reilly's online platform,letting you access any of their books and even some of them in pre-release.

I find that I only use a few of my books enough to justify the purchase, and I prefer skimming chapters I find interesting through the platform access I get from my library account.