how many copies of the outsiders hve been sold?

Answer 1

Publisher Comments:
A landmark work of American fiction, now for the first time in Penguin Classics
First published in 1967, S. E. Hintons novel was an immediate phenomenon. Today, with more than eight million copies sold and now available with a perceptive introduction by Jodi Picoult, The Outsiders continues to resonate with its powerful portrait of the bonds and boundaries of friendship.