I was going to chime in, but all the ones that instantly popped into my head were mentioned. I'll have to dig around and see if I can come up with some more. Ever since I was a child, I've loved books that talk to the reader. In fact, the first book that hit me was The Monster at the End of This Book because I wore those pages so thin, and it always stuck with me as I grew up. I loved buying a fresh new copy to share with my daughters (who also love that book).