Hi all. So I had just recently bought the iPad Pro 10.5 inch, 512gb. Was just wondering a guesstimate on how many books I could put on. I saw a post a while ago about a 32gb iPod with maybe 600-1000 books. I have close to 467gb left. Almost all my music, but a lot in the cloud. I'm going to be goin on a trip soon, and would love to not only have some other movies downloaded before the trip, but also a lot of my books. Thanks in advance.