It’s totally up to you of course. And it depends on what for and why you’re tracking the number of books you read. It’s not like reading challenges are this sacred, centralized idea that you can meaningfully ‘cheat’ on.

It sounds self-evident, but if you are tracking books you’ve read every word of, don’t count it. If you’re tracking books you feel done with, count it. If you’re using it just as a log to track what you’ve read in a given year, count it. If you’re doing a fun challenge with friends, ask them, or count it, or don’t.