Two new relevant books on related matters have just been published in Belfast by Beyond the Pale Publications, for details see their website.

1. "A Very British Jihad: Collusion, Conspiracy and Cover-Up in Northern Ireland"; by Paul Larkin.

2. "An Army with Banners: the Real Face of Orangeism"; by William Brown.
I haven't read this book yet but it was written by a former, now anti-Orangeman.