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An Introduction to Philosophy by Pecorino (CC-BY-NC-ND) [Review]
bullet-3 Arguments: Deductive Logic Exercises by Pospesel and Marans (CC-BY-SA)
Computers, Information Technology, the Internet, Ethics, Society and Human Values ed. by Pecorino (CC-BY-NC-ND)
Consciousness Studies by Wikibooks (CC-BY-SA)
David Hume by OpenLearn (CC-BY-NC-SA)
Formal Logic by WikiBooks (CC-BY-SA)
Historical Introduction to Philosophy by Wikiversity (CC-BY-SA)
Introducing Philosophy by OpenLearn (CC-NC-BY-SA)
Introduction to Ethical Studies by Archie and Archie (GDFL)
Introduction to Formal Logic by Magnus (CC-BY-SA)
bullet-3 Logic: An Invalid Approach by Marans (CC-BY-NC-SA)
bullet-3 Logic Gallery by Marans (CC-BY-SA)
Medical Ethics by Pecorino (CC-BY-NC-ND)
Philosophy of Religion by Pecorino (CC-BY-NC-ND) [Review]
Reading for Philosophical Inquiry: A Brief Introduction to Philosophical Thinking, An Open Source Reader by Archie and Archie (GFDL)
Walden by Thoreau (PD)


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Accessibility reviews, as indicated by the number 1 next to the book title, are available at Accessibility reviews.
License Attributes: ACARR=Affordable Copyright All Rights Reserved.  BY=Open w/ Attribution.  CC=Creative Commons license.  GFDL=GNU Free Documentation License.  GGPL=GNU General Public License.  NC=Non-Commercial.  ND=No Derivative Works.  PD=Public Domain.  SA=Share Alike.