Anarchism : A very short introduction. By Colin Ward. 2004 Ebook.
Anarchism and authority: A philosophical introduction to classical anarchism. By Paul McLoughlin. 2007. Ebook.
Changing anarchism : Anarchist theory and practice in a global age. Edited by Jonathan Purkis and James Brown. 2004. Ebook
Living without domination: The possibility of an anarchist utopia. Samuel Clark. 2007. Ebook
Mobilizing for democracy: Citizen action and the public participation. Edited by Vera Schattan P. Coelho and Bettina Von Lieres. 2010. Ebook
Social movements and democracy. Edited by Pedro Ibarra. 2003. Stacks HM881.S628 2003
Direct action: An ethnography. David Graeber. 2009. Ebook.
Concerning the Violent Peace Police, an article by David Graeber on the Black Bloc, which has been recently gained attention for it's associations with the Occupy movement and appearence at Occupy actions.