If they're looking for generic, thick books, they could easily have access to a Bible or other classic book of literature. (I suddenly have the image of an inmate saying, "Sure, I'll read 'War and Peace' it's not like I don't have the time anymore."
I actually read "War and Peace" while I was in. I also read the "Official Soviet Air History of World War II" so I definitely had the time.
I do not, however, believe that people who have studied the concept of "God" less than me are NOT able to rationally conclude there is no God.
That is what I meant to say.
I spent years of my life, mostly from fifteen onwards, in a very intense study of God, morality, and I spent my time to the best of my ability trying to improve myself to help lead others to God. While trying to find these "proofs" of God I concluded there was no God. Having lost my faith at twenty it came with no little trauma. I do not, however, believe that people who have studied the concept of "God" less than me are able to rationally conclude there is no God.
I would not say that someone who only has a cursory understanding of Greek myths is not rationally able to dismiss them as false. You do not have to be an expert in on bullshit to know when you smell it. I dismissed the Greek myths because there is no evidence, I dismiss fairies because there is no evidence, I dismiss spirits, ghosts, etc. because there is no evidence.
When I was finally able to start at zero and try to see God in the real world, without religious texts, with only the natural world to guide me, I saw no evidence. I must dismiss ancient religions for their lack of evidence, and so I dismiss "God" for the same. The people who dismiss God without being experts in the debate are not wrong. They are simply doing the same thing you do when you dismiss the thousands of deities you know little or nothing about.
If you want to hold everyone to this standard of having actually studied it in depth before dismissing it, then I suggest you dedicate the rest of your life to studies the tens of thousands of deities there are, and after this intense study which will consume your entire life, then you can rant about how atheist haven't done enough to study your god.
My computer can beat up your computer. - Karl Lehenbauer