There are 5 books in the Cycle of Oak, Yew, Ash, and Rowan series.
The Cycle of Oak, Yew, Ash, and Rowan series does not have a new book coming out soon. The latest book, The Knight of the Red Beard (Book 5), was published in October 2008.
The first book in the Cycle of Oak, Yew, Ash, and Rowan series, To the King a Daughter, was published in September 2000.
The Cycle of Oak, Yew, Ash, and Rowan series primarily falls into the Fantasy genre.