You could memorize any book if you really wanted to. Word for word. But unless you’re learning a text, like the Bible or poetry, you don’t need every word. You just need all the important parts. That’s much easier. Like, months of your life easier. The tough part isn’t even the memorizing. It’s choosing which parts to learn. I’ll say that again. The hard part of memorizing an “entire” book isn’t the memorizing.