Fatima book

We get it: When you hear the word "blockbuster," you probably think of some handsome guy named Chris flexing his muscles across the big-screen. But as much as popular as those comic book movies are, that term can also apply to a great read as well. Herein, we've rounded up the 30 best-selling novels of all time. You've likely heard of them all, and have maybe even read a few. But you probably didn't know that tens of millions—and in some case, hundreds of millions—of other people have done the same. So keep reading to find out how many of these blockbuster books you have on your physical or digital shelves. And for upcoming memoirs penned by your favorite stars, check out 7 Must-Read Celebrity Books Coming Out This Year.