*Grabs kindle*
Douglas Adams, definitely.
The Martian by Andy Weir
Although I'm not personally a fan, the Harry Potter series.
Robert Jordan's Wheel of Time series
The Dark Tower by Stephen King
Ready Player One by Earnest Kline
Contact by Carl Sagan
The Righteous Mind by Jonathan Haidt
The God Delusion by Richard Dawkins
The End of Faith by Sam Harris
God Is Not Great by Christopher Hitchens
Breaking The Spell by Daniel Dennett
The Selfish Gene by Richard Dawkins
The Man Who Mistook His Wife For A Hat by oliver Sacks
The Demon Haunted World by Carl Sagan
Guns, Germs & Steel by Jared Diamond
Freakonomics Steven Levitt & Stephen Dubner
A Brief History Of Time Stephen Hawking
Thinking, Fast and Slow: Daniel Kahneman