Which book has had the most significant influence on you?

I’ll go first: ‘The God Delusion’ by Richard Dawkins. Almost made me vanish in a puff of logic.

@godpod
One of Costeau's series on the ocean. First and foremost because it vastly expended my ability to understand english, but also because it gave me a life long obsession over anything aquatic.
Then Carl Sagan's Cosmos.