Book excerpt: Atheist Mind, Humanist Heart asks an essential question for the 45 million Americans who self-identify as nonreligious: “So, you don’t believe in God; now what?” This question is increasingly important, as one-third of young adults under the age of thirty consider themselves nonreligious. With a scientific eye and an empathetic heart, the authors turn conventional perceptions about atheism on their head. They show that atheism need not be reactionary (against religion and God), but rather that it can offer a clear set of constructive principles to live by, which establish atheism as a positive worldview. Following a philosophical approach grounded in logic and evidence, Bayer and Figdor take readers on an inspiring journey to discover how to live a reasonable, ethical, and happy life without God. The readers are engaged at every step, encouraged to self-reflect and ultimately uncover their own set of personal beliefs.