This might be too subtle, but I might suggest Neither East Nor West by Christiane Bird. It's about one woman's travels, by herself, through Iran. I read it before I woke up w/respect to the "truth," but I have to say that it jarred me.
At one point, Bird is visiting an ultra orthodox Muslim city in the north of Iran (Qum, IIRC) and she has a lengthy discussion with a cleric. The reasoning he uses to support Islam, as well as his general world view, was so similar to JWs that it gave me a jolt. I remember thinking something like Moslems think they have the truth but they're wrong--yet their epistemological support structure is virtually identical to ours. So if it's possible for them to be deluded, then what about us... The cleric's rationale regarding believers and non-believers could have come from an assembly part, no kidding. If I had to pinpoint one moment where I started to wake up, it was then.
Then, of course, I started discovering all the quotes taken out of context in the Creation book and my whole world fell apart. But that's another story...