The Piper Periwinkle series does not have a new book coming out soon. The latest book, Piper Periwinkle and the Prize-Winning Pig (Book 3), was published in February 2017.
The first book in the Piper Periwinkle series, Piper Periwinkle and the Perfect Picnic, was published in June 2016.
The Piper Periwinkle series primarily falls into the General Fiction genre.