How many diary of a wimpy kid books have been sold?

Over 250 million copies of the Diary of a Wimpy Kid series have been sold worldwide. The novel was first published in 2007 and has since become a global phenomenon, with translations in over 60 languages. The books have been praised for their humor, relatability, and ability to appeal to readers of all ages. The series has also been adapted into several television shows, video games, and other merchandise.