Some FREE reading material for those interested...
(Updated 3/22/18)
“Sedition Subversion and Sabotage Field Manual No. 1” (pdf) - http://www.badquaker.com/wp-content/uploads/2016/07/FieldManualNo1.pdf (Or listen to it - http://www.libertyunderattack.com/benstoneaudiobook/)
"The Second Realm - Book on Strategy" (pdf) - http://anarplex.net/hosted/files/secondrealm/secondrealm.pdf (you can also follow 
"VONU; The Search for Personal Freedom" by Rayo (pdf) -
http://www.libertyunderattack.com/wp-content/uploads/Documents/VONU%20-%20The%20Search%20for%20Personal%20Freedom%20by%20Rayo.pdf (and visit http://vonupodcast.com/)
"The Market for Liberty" by Linda & Morris Tannehill (html) - http://alexpeak.com/twr/tmfl/#textbysection (fair warning; the page is black with white writing and messes with your eyes a bit) or read the PDF version here (easier on the eyes) - https://mises.org/files/market-liberty2pdf/download?token=MwjCYp1I
"The New Libertarian Manifesto" by Samuel Edward Konkin III (pdf) - http://praxeology.net/NewLibertarianManifesto.pdf
“An Agorist Primer” by Samuel Edward Konkin III (pdf) - http://www.kopubco.com/pdf/An_Agorist_Primer_by_SEK3.pdf
“The Road to Serfdom” by FRIEDRICH A. HAYEK (pdf) - https://mises.org/system/tdf/Road%20to%20serfdom.pdf?file=1&type=document
“The Law” by Frederic Bastiat (html) - http://bastiat.org/en/the_law.html
“Self-Control or State Control? You Decide” Students For Liberty & Atlas Network (basically a collection of essays from various sources) (pdf) - https://www.atlasnetwork.org/assets/uploads/misc/atlas-network_self-control_t7p2.pdf
The Collective Works of Lysander Spooner (html) - http://www.lysanderspooner.org/works/
"Natural Law, or The Science of Justice" by Lysander Spooner" (html) - http://www.panarchy.org/spooner/law.1882.html
“The Most Dangerous Superstition” by Larken Rose (pdf) - http://www.freeyourmindaz.com/uploads/1/2/8/3/12830241/the-most-dangerous-superstition-larken-rose-2011.pdf
“Anarchism Without Hyphens” by Karl Hess (html) - http://www.panarchy.org/hess/anarchism.html
"The Death of Politics" by Karl Hess (html) - http://fare.tunes.org/books/Hess/dop.html
“Democracy: The God That Failed” by Hans-Hermann Hoppe (pdf) - http://www.riosmauricio.com/wp-content/uploads/2013/04/Hoppe_Democracy_The_God_That_Failed.pdf
“The Right and Wrong of Compulsion by the State and Other Essays” by Auberon Herbert (html) - http://oll.libertyfund.org/titles/herbert-the-right-and-wrong-of-compulsion-by-the-state-and-other-essays-1978-ed
"The Principles of Voluntaryism and Free Life" by Auberon Herbert (html) - http://panarchy.org/herbert/voluntaryism.html
“Anatomy of the State” by Murray Rothbard (html) - https://mises.org/library/anatomy-state/html
"Egalitarianism as a Revolt Against Nature and Other Essays" by Murray Rothbard (html) - https://mises.org/library/egalitarianism-revolt-against-nature-and-other-essays/html
“For a New Liberty. The Libertarian Manifesto” by Murray N. Rothbard (pdf) - https://mises.org/system/tdf/For%20a%20New%20Liberty%20The%20Libertarian%20Manifesto_3.pdf?file=1&type=document
"Man, Economy, and the State" by Murray Rothbard (pdf) -https://mises.org/system/tdf/Man%2C%20Economy%2C%20and%20State%2C%20with%20Power%20and%20Market_2.pdf?file=1&type=document
"Power and Market: Government and the Economy" by Murray Rothbard - (html) https://mises.org/library/power-and-market-government-and-economy/html
"Ethics of Liberty" by Murray Rothdard (html) - https://mises.org/library/ethics-liberty/html
“Economics in One Lesson” by Henry Hazlitt (pdf) - http://www.hacer.org/pdf/Hazlitt00.pdf
“THE MACHINERY OF FREEDOM. GUIDE TO A RADICAL CAPITALISM” by David Friedman (pdf) - http://daviddfriedman.com/The_Machinery_of_Freedom_.pdf
“JOSIAH WARREN The First American Anarchist. A Sociological Study” by WILLIAM BAILIE (html) - http://dwardmac.pitzer.edu/Anarchist_archives/bright/warren/bailie.html (the introduction to this piece, called “The Anarchist Spirit” is one of my favorite pieces)
“Individual Liberty” by Benjamin Tucker (html) - http://theanarchistlibrary.org/library/benjamin-tucker-individual-liberty#toc9
“Manifesto” by Josiah Warren (html) - http://www.anarchism.net/warren-manifesto.htm
“End of All Evil” by Jeremy Locke (pdf) - http://mensenrechten.org/wp-content/uploads/2014/05/EndofallEvil1.pdf
“The Creature From Jekyll Island (A Second Look at the Federal Reserve)” by G. Edward Griffin (PDF) - https://wrathoftheawakenedsaxon.files.wordpress.com/2016/09/creaturefromjekyllislandbyg-edward-g-edwardgriffin.pdf
"Second Treatise of Government" by John Locke (pdf) - http://www.earlymoderntexts.com/assets/pdfs/locke1689a.pdf
"Our Enemy: The State" by Albert Jay Nock (html) - https://mises.org/library/our-enemy-state-0
"Chaos Theory" by Robert P. Murphy (pdf) - https://mises.org/system/tdf/Chaos%20Theory_2.pdf?file=1&type=document (basically two long essays on market anarchy)
"The State Its History and Development Viewed Sociologically" by Frank Oppenheimer (pdf) - https://mises.org/system/tdf/The%20State%20Its%20History%20and%20Development%20Viewed%20Sociologically_2.pdf?file=1&type=document"
Atlas Shrugged" by Ayn Rand (pdf) - http://thetexasrepublic.com/documents/atlasshrugged.pdf
"Criminality of the State" by Albert Jay Nock (html) - http://alumnus.caltech.edu/~ckank/FultonsLair/013/nock/criminality.html
"The Dominant Idea" by Voltairine de Cleyre (html) - http://dwardmac.pitzer.edu/Anarchist_Archives/bright/cleyre/dominant.html
"The Making of an Anarchist" by Voltairine de Cleyre (html) - https://www.panarchy.org/voltairine/anarchist.html
"Anarchism" by Voltairine de Cleyre (html) - https://www.panarchy.org/voltairine/anarchism.html
"Anarchism & American Traditions" by Voltairine de Cleyre (html) - http://dwardmac.pitzer.edu/anarchist_archives/bright/cleyre/amertrad.html
"The Right to Ignore the State" by Herbert Spencer (html) - http://www.panarchy.org/spencer/ignore.state.1851.html
"Patriotism and Government" by Leo Tolstoy (HTML) - http://dwardmac.pitzer.edu/Anarchist_Archives/bright/tolstoy/patriotismandgovt.html
"More of the Same" by H.L. Mencken (html) http://www.panarchy.org/mencken/same.html
"About the State" by Ludwig von Mises (html) - http://www.panarchy.org/vonmises/state.html
"Society as Human Cooperation" by Ludwig von Mises (html) - http://www.panarchy.org/vonmises/society.html
"On Secession" by Ludwig von Mises (html) - http://www.panarchy.org/vonmises/secession.html
"An Introduction to the Theory of Cognitive Dissonance" by Leon Festinger (html) - http://www.panarchy.org/festinger/dissonance.html
"The New Toryism" by Herbert Spencer (html) - http://www.panarchy.org/spencer/toryism.html
"Dumbing Us Down" by John Taylor Gatto (pdf) - http://www.users.humboldt.edu/jwpowell/27806948-Dumbing-Us-Down-by-John-Taylor-Gatto.pdf
"Politics" by Ralph Waldo Emerson (html) - http://panarchy.org/emerson/politics.1844.html
"Brave New World" by Aldous Huxley (pdf) - http://www.idph.com.br/conteudos/ebooks/BraveNewWorld.pdf
"Objections to state interference" by John Stuart Mill (html) - http://panarchy.org/mill/stateinterference.html
"More Of The Same" by H.L. Mencken (html) - http://panarchy.org/mencken/same.html
"Guerrilla Capitalism: How to Practice Free Enterprise In an Unfree Economy" by Adam Cash (PDF) - http://www.libertyunderattack.com/guerrillacapitalism/
"Walden" by Henry David Thoreau (pdf) - http://www.eldritchpress.org/walden5.pdf
"Unintended Consequences" by John Ross (PDF) - https://www.freedomsphoenix.com/Uploads/129/Media/Unintended_Consequences.pdf
"The True Believer" by Eric Hoffer (PDF) - http://evelynbrooks.com/wp-content/uploads/2011/10/The_True_Believer_-_Eric_Hoffer.pdf
"Basic Economics" by Thomas Sowell (PDF) - http://altfeldinc.com/pdfs/BASICECONOMICS.pdf
"War Is A Racket" by Major General Smedley Butler (PDF) - https://ratical.org/ratville/CAH/warisaracket.pdf
“Confessions Of An Economic Hitman” by John Perkins (pdf) - http://resistir.info/livros/john_perkins_confessions_of_an_economic_hit_man.pdf
"Behold A Pale Horse" by William Cooper (pdf) - http://www.govtslaves.info/wp-content/uploads/2014/05/Cooper-Behold_a_Pale_Horse-1991.pdf
"The Federal Mafia" by Irwin Schiff (pdf) - http://www.govtslaves.info/wp-content/uploads/2015/08/PDf-THE-FEDERAL-MAFIA-BY-IRWIN-SCHIFF.pdf
"How To Start Your Own Country" by Erwin Strauss (PDF) - http://emilkirkegaard.dk/en/wp-content/uploads/How-to-Start-Your-Own-Country-Erwin-S.-Strauss.pdf