I have bookmarks in like a dozen books right now. I can read parts of 8-10 books in a week. That's probably more than I should. But, I do it. I used to think I was crazy for doing this. But, I recently saw a youtuber say this is actually a good strategy to always be reading. If you stick to one book, you may have a day where you aren't in the mood for said book. We don't force ourselves to only watch one genre of TV, or only listen to one genre of music at a time.

Having several books going at once, means you should always have one you'll be in the mood to open at some point in the day.