Produced, mixed and engineered by Martin "Marvin" Birch.
Recorded at Compass Point, Nassau, Bahamas.
Assistant engineers: Denis Haliburton, Frank Gibson.
Mixed at Electric Lady Sound Studios, New York, USA.
Assistant mixing engineer: Bruce Buchhalter.
Song credits:
1, 5, 7 & 9 by Harris,
2 by Dickinson,
3 by Smith/Dickinson,
4 by Smith/Dickinson/Harris,
6 by Murray/Harris,
8 by Dickinson/Smith.
Sleeve illustrations by Derek "Dr. Death" Riggs.
Sleeve concept and design: Iron Maiden, Rod Smallwood and Derek Riggs.
Line-up (left to right):
Adrian Smith - lead guitars
Nicko McBrain - drums
Steve Harris - bass guitar
Dave Murray - lead guitars
Bruce Dickinson - vocals
Bonuses on various versions: Sanctuary (Harris/Murray/Di'Anno), Burning Ambition (Harris), Drifter (live) (Harris), I've Got the Fire (live) (Montrose cover), Twilight Zone (Murray/Harris), Women in Uniform (Skyhooks cover), Invasion (Harris), Phantom of the Opera (live) (Harris), Cross Eyed Mary (Jethro Tull cover).