I have not seen this book itself but only received notice today that it is out in print and up for review at Classical Journal:
Chapman, Honora Howell and Zuleika Rodgers. A Companion to Josephus. West Sussex, U.K.: Wiley Blackwell, 2016. Pp. xvi + 472. Hardcover, $195.00. ISBN 978-1-4443-3533-0.