There are 3 books in The Declaration Trilogy series.
The Declaration Trilogy series does not have a new book coming out soon. The latest book, The Legacy (Book 3), was published in January 2011.
The first book in The Declaration Trilogy series, The Declaration, was published in May 2008.
The Declaration Trilogy 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.