This book is the first in the series, and I gave it a rating of three out of five. Greg Heffley writes a journal, not a diary, about his life as middle school student. He talks about his attempts to become popular as the class treasurer, comic strip writer for the school paper, and class clown, among other things. He shares his adventures with bullies and embarrassing moments with his classmates. He talks of being picked on by his older brother and his jealousy of his spoiled little brother. And finally, he describes his on and off friendship with his best friend Rowley.
This series is very popular for many students. There are humorous and realistic moments described during the plot. There didn't seem to be an ongoing conflict, so the plot lacked some direction for me. The writing was interesting, but it didn't grab me. Again, many readers enjoy the books, so they're worth giving a try. Maybe they'll grab you.
Lexile level from lexile.com 950