Atheism is the absence of belief in the existence of gods or deities. Atheists do not subscribe to religious doctrines and often rely on scientific and empirical evidence to understand the world. While atheism itself does not prescribe a particular worldview or set of behaviors, many atheists advocate for critical thinking, skepticism, and secularism. The reasons for atheism vary, including philosophical inquiry, a lack of empirical evidence for deities, or a rejection of religious dogma. Find articles that will help you speak or witness to atheists.