There are 2 books in the Double Sided Teen series.
The Double Sided Teen series does not have a new book coming out soon. The latest book, The Third Side (Book 2), was published in July 2012.
The first book in the Double Sided Teen series, Double Sided, was published in September 2010.
The Double Sided Teen series primarily falls into the General Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.