The Barney series does not have a new book coming out soon. The latest book, A Horse like Barney (Book 2), was published in September 2014.
The first book in the Barney series, Keeping Barney, was published in January 1981.
The Barney series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.