Have you ever read a book that changed your life?

Yes, the most read book in the world, The Holy Bible.😊

Yes. The first book to do that was Tiger Eyes, by Judy Blume

Island, by Aldous Huxley
The concept of the political, Carl Schmitt
The introduction to "The Prince" by Machiavelli
The Plague, Albert Camus
Dune (the entire series), by Frank Herbert

... All gave me headaches, and all expanded facets of my thinking.

Full Catastrophe Living by Jon Kabat-Zinn had an important influence on me when I read it in 1995. It introduced me to meditation and the foundations of mindfulness.

Yes The Basterard by John Jakes in the middle 70s it started me reading again havent stoped yet .

His Dark Materials, World War Z, The Secret Life of Trees, a bunch

Several

i started treating ppl slightly better after reading the power on one...

Happiness by Thich Nhat Hanh