Sometimes generally referred to as "the nones," agnostics, atheists, humanists, freethinkers, secularists and skeptics compose one of the fastest growing faith categories in the United States. Because they are treated as "nones," some people face discrimination as nonbelievers, despite their varied and strong beliefs, values and morals. This basic guide, "100 Questions and Answers About the Religiously Unaffiliated," describes the differences, explains why discrimination and laws force some to hide their beliefs and why they would like to shed the label of "nones." Religious freedom and the First Amendment's establishment clause come up frequently.

The key issue for many is whether the First Amendment's guarantee of religious freedom also guarantees the right to be free from religion.

Legal issues include school prayer, the obligation to support tax-exempt religious properties and requirements that people profess belief in God to be allowed to vote or hold office.

Life magazine called Madalyn Murray O'Hair, whose lawsuit ended mandatory prayer in public schools, "the most hated woman in America." The Secular Coalition for America's website directory withheld the name of its communications consultant because "unwarranted prejudices and discriminatory practices ... affect atheists and humanists. Consequently, s/he felt it was best to be incognito for now, since working for an organization that protects the rights of nontheists might result in lost opportunities with other clients."

In this guide's forward, Dr. Phil Zuckerman writes, "Understanding secular people is important for many reasons. For one thing, secular movements, leaders, values and ideals play significant roles in the political landscapes of the world. From the first sentence of the First Amendment to the U.S. Constitution, to Article 20 of Japan's Constitution, from France's la