By: Viktor Frankl
Intro:
Man's Search for Meaning is the most universally applicable, cross-culturally moving book I've yet to encounter. I can't imagine anyone reading this book and not getting struck by Frankl's incredible story surviving the Holocaust, the understandings gained in such atrocity, and his conclusion that meaning is the primary drive of our human existence.
I've ran into a couple "books that most influenced your life" survey-results, and reasonably, this book never fails to be near the top.