The Perks of Being a Wallflower is an epistolary novel written by the American author Stephen Chbosky. I read in in the Spanish version because a friend gave it to me as Christmas present. But the fact is that I had not thought of it as a mail book until I saw the title in a list of Books related to mail.
This blog is actually about mail and not about books. All I am going to say is that this book is delicious! The kind of book that tells a lot of sad things but makes you happy anyway.
By the way: it arrived by snail mail.
(Here more serious comments; but don't blame me if you find some spoilers...).