Veronica Roth, Divergent, Insurgent, Allegiant, Four. Katherine Tegan Books (Harper Collins), USA, 2011, 2012, 2013, 2014.
All four books are new and unread in matching dust jackets.
Each book is signed by Veronica Roth on the title page with the exception of Allegiant, which is a publisher's signed edition on a special page preceding the title page.