Diary of a Wimpy Kid #10: Old School by Jeff Kinney. More of Greg Heffley's hilarious journal stories about his adolescent life. This bestselling book is based on the original internet comic at Funbrain.com that is viewed on average by over 70,000 readers a day. Korean translation by Song Sun Seop. In Korean. Annotation copyright Tsai Fong Books, Inc. Distributed by Tsai Fong Books, Inc.