AdvertisementThe Wimpy Kid's Best Friend Gets A Diary Of His Own ... And He's 'Awesome'April 13, 2019Scott SimonfacebookEmail"The first thing you need to know about me is that I am Greg Heffley's best friend," Rowley Jefferson writes in his journal. "I know it says that on the cover but I wanted to mention it in case you missed that part." (Amulet Books)