Most of us teachers get tons and tons of book order catalogs, and only end up using one or two. Mr. Smith, over at Teacher Tipster, made a short video about an idea he came across to put these left over or unused catalogs to good use. He mentions sorting pictures of the covers by books to inform and books to entertain, but you could also add books to persuade and teach the entire PIE concept of author's purpose. Check out the video ( I just love Mr. Smith. He is a hoot)!