There are 2 books in the Diary of a 6th Grade Spy series.
The Diary of a 6th Grade Spy series does not have a new book coming out soon. The latest book, Who Is the Mole? (Book 2), was published in June 2017.
The first book in the Diary of a 6th Grade Spy series, Zero to Hero, was published in June 2017.
The Diary of a 6th Grade Spy series primarily falls into the Fantasy genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.