This book explores how religious doctrines influence launching a new venture. It examines 16 Christian denominations and 9 world religions and how they would reasonably be expected to apply more than 20 distinct doctrines each to entrepreneurship. It is not an examination of doctrinal veracity because adherents have confidence in their beliefs. Rather, it examines how they will evaluate the attractiveness of entrepreneurship through the lenses of their beliefs, assuming they receive what they expect. More than 100 years ago, Max Weber pitted Protestantism against Hinduism in a single hypothesis. The current study is a multifactorial examination that covers the world major religions, as well as most of their doctrines. It is the first comprehensive examination of how entrepreneurs view the world through the lenses of their religious doctrines, which represent the formalization of their most deeply held beliefs.