Add one more to the visual bookshelf

I finished another book this weekend. That makes three in March alone, and it's only the 10th! Did I mention I'm 50 pages away from finishing another book? There really is nothing to do in West Covina...

Which brings me to the thought of bookshelf etiquette. What do you think, should you be allowed to display books on a bookshelf if you read them? Or should it be the opposite as Ezra Klein propounds (get it? Ezra Klein propounds....Ezra Pound? Yes? No?...okay, nevermind) that books you read should only be displayed on facebook? Discuss!