The bible. No joke

I just never saw the merit in any of it. And don't get me started on preachers...

No one. I just kinda came to the path myself.

I didn't need any help. ive always lived with dogs and they do just fine without religion.

Over a decade ago I was in a discussion with a friend who said religious people were delusional. This was a year or two before Harris, Hitchens, Dawkins books. I was at the time anti religion but still clung to some vague notion of a higher power. Her comment literally sent me on a different trajectory. Today thinking about your question, I realized that I didn't learn to think correctly until graduate school when I realized the importance of the scientific method and logic.

my grandma, she isnt super religious, but she believes in god and jesus and all that. when i was a kid, maybe 5 or 6, i asked one easter, why we were having a party. my grandma told me about how god let his son die and about resurection and all that. i remember being sad, it made me wonder if my mom would let me die, after that i was very curious about the whole thing. i soon found out that there where many religions, and started 2 compare them, study them, and try 2 imagine how i would feel about myself if i followwed the rules of any one of them. by the time i was maybe 8, i had decided that i wouldnt like me very much if i did those things. i told my grandma that i didnt worship her god, she was upset, we moved on, i am still very curious about religion in general. and i still don't worship anyones god/gods

I noticed that the "Meathead" on Archie Bunker(All In The Family)was an atheist. I was very young, but that was my first profound and clear validation.

Life.

Logic and reason first and foremost. Mom used to take us to church as a kid and I remember thinking how smug the pastor used to be as well.

No one. I came to it on my own.
Although, I remember hearing about Madalyn Murray O'Hare and her fight to get
religion out of public schools. I was little, but I remember hearing adults talking about
her and saying disparaging things. I was immediately intrigued and wanted to know
more about her. I also remember the librarians looking at me sideways when I was
trying to find information on her. There wasn't a lot, but what I found was interesting and
spurred me on in my disbelief. I already knew religion was bullshit.

Been a non-believer since teens.

Every book by Bart Ehrman.