Voices from Chernobyl: The Oral History of a Nuclear Disaster" by Svetlana Alexievich. It makes you realize how lucky we are.
Water for Elephants, House of Sand and Fog, anything by David Sedaris he is simply amazing. On the road By Jack Kerouac this book will make anybody with have of a soul want to leave everything pack up and live a free life. Roots by Alex Haley this book forever changed my view on slavery and the black American experience.