The Social Contract By: Jean-Jacques Rousseau

On War By: Carl von Clausewitz

Constitución Española de 1978 By: Las Cortes y el Pueblo Español

Proposed Roads to Freedom By: Bertrand Russell

The 2010 CIA World Factbook By: United States. Central Intelligence Agency

Trifles By: Susan Glaspell

The Profits of Religion By: Upton Sinclair

The Thirty Years War By: Friedrich Schiller

The Coming People By: Charles F. Dole

George Washington By: Calista McCabe Courtenay

The Facts of Reconstruction By: John R. Lynch

Second Treatise of Government By: John Locke

Meditations from the Pen By: Maria W. Stewart

Every-day Life of Abraham Lincoln By: Francis Fisher Browne

Socialism: Utopian and Scientific By: Friedrich Engels

Philip Dru: Administrator By: Edward M. House

Economic Consequences of the Peace By: John Maynard Keynes

The Universal Religion: Bahaism - Its Rise and Social Import By: Hippolyte Dreyfus-Barney

The Brethren By: H. Rider Haggard

Omega: The Last Days of the World By: Camille Flammarion

A Problem in Modern Ethics By: John Addington Symonds

Major Barbara By: George Bernard Shaw

Condition of the Working-Class in England in 1844 By: Friedrich Engels

Laws By: Plato

Neighbors – Life Stories of the Other Half By: Jacob A. Riis

Selected Essays By: Karl Marx

Machiavelli, Volume I By: Niccolò Machiavelli

John Stuart Mill; His Life and Works By: Various

Considerations on Representative Government By: John Stuart Mill

Public Opinion By: Walter Lippmann