This lost classic was first published anonymously in 1902 by the Social Science Club of Philadelphia, whose members included Voltairine de Cleyre, Mary Hansen, Natasha Notkin, and other Mutualists, Individualists, and Communists from the Philadelphia social movement. The “Catechism,” drafted by Hansen and finished by the Club collect­ive­ly, presents a dialogue on the fundamentals of Anarchistic philo­sophy; discusses the commonality and the disagree­ments among Socialist, Indiv­id­u­al­ist, Com­mun­ist, and Mutu­al­ist forms of Anarchism; and offers a pluralistic, experimental vision of the free society, in which free people can try out any peaceful econ­omic arrangement, and in which a wealth of Anarchistic econ­omic systems peacefully co-exist, compete, and flourish side-by-side.