Here is the official blurb from Amazon.com:
"You’ve studied the Old Testament. You’ve studied the New Testament. But what do you know about the nearly five hundred years of history between those sacred books? Now, in The Lost 500 Years (a special illustrated edition of the book formerly titled Between the Testaments), Kent Brown and Richard Holzapfel illuminate this little-understood but vital era. The book discusses the Dead Sea Scrolls; the Apocrypha and Pseudepigrapha; key political, religious, and cultural groups mentioned in the New Testament; Jewish feasts and festivals; Jewish law; and the hope for a Messiah. Understanding this watershed period of history will set the stage for you to fully appreciate the events and teachings of the New Testament!"