A book that you’ve read more than 3 times
That would be every single book that I own in general has been read a min of that many times most a good dozen or so times. Of the series from Anita Blake vampire hunter, I’ve reread the entire series from start to current book a couple dozen times.
Easer to look at the Good Reads list of books I’v read to see what I like to read and then remember all listed as read have been read a min of 5 times each over the course of me getting them.