Frequent customer here and I must say Christ Ambassadors has been my go to for picking up quality study materials. The thing that got me most was how organized their retail section is sha, everything is properly labeled and the staff actually know where stuff is instead of that usual Nigerian nonsense where you ask for something and they point vaguely. Prices are fair for what you get and they've never given me expired stock like some places. Worth the trip from my end of town honestly.