Who said reading can’t be competitive? Every few months, we’ll be challenging you to read a list of selected books. Print out the challenge and cross the titles off as you go. Show off how much you’ve read by taking a picture and tweeting @penguinrandom or Instagramming (@penguinrandomhouse) with the hashtag #challengeyourshelf. There are always books on your to-be-read shelf, so why not challenge yourself? We picked 24 beloved Young Adult books everyone should read. Show us how many you finish! (click image to see full size and print out)