From Plato until now, thinkers throughout history inquired the nature of truth and its attainment. In a world where many allege to possess the "ultimate" truth, the book examines if a claim to truth is ever certain. Why question beliefs? What counts as evidence? What are credible beliefs? Is science true? Can the future be predicted with certainty? These are some of the questions Joseph Erban investigates in his latest book that explores What is Truth?