JEFF KINNEY'S MASSIVE FORTUNE: HOW MUCH IS DIARY OF A WIMPY KID WORTH?

Okay, so you know/everyone knows/we all realize that Jeff Kinney is basically a rock star in the world of kids' books. His legendary/famous/super-popular Diary of a Wimpy Kid series has sold millions/become a global phenomenon/taken over the world, and it seems like everyone from kindergartners to grandparents is reading/obsessed with/laughing at G