Viktor Frankl was a psychiatrist who continued practicing his profession at Auschwitz, in conversations with his fellow prisoners. In this short, readable, and life-changing book, he explains what most affected inmates’ survival, beyond chance: having something to live for, whether a person to love, creative work to complete, or an awareness of suffering’s meaning. His conclusions, which he later shaped into a new form of psychiatry called logotherapy, are applicable to any life. What matters most in life is not pursuing happiness, but pursuing meaning—not fulfillment, but commitment.