葛瑞的生活冒險與學校經歷是由美國漫畫家傑夫．肯尼（Jeff Kinney）所創作，Diary of a Wimpy Kid系列在2004年開始在Funbrain.com這個專為兒童與老師設計的網站中連載，由於故事內容貼近生活、用語幽默、加上線條簡單的趣味圖像風 格，受到廣大青少年讀者的歡迎，狂掃各大書店暢銷榜。
閱讀Wimpy Kid系列漫畫日記，不但幽默好笑又精彩，貼近美國文化的用語對話，還可以讓學到實用的英文會話！ Greg Heffley finds himself thrust into a new year and a new school where undersize weaklings share the corridors with kids who are taller, meaner and already shaving.
Desperate to prove his new found maturity, which only going up a grade can bring, Greg is happy to have his not-quite-so-cool sidekick, Rowley, along for the ride. But when Rowley’s star starts to rise, Greg tries to use his best friend’s popularity to his own advantage. Recorded in his diary with comic pictures and his very own words, this test of Greg and Rowley’s friendship unfolds with hilarious results.