- The knowledge machine, how irrationality created modern science, Michael Strevens
- The Gift of maybe, finding hope and possibility in uncertain times, Allison Carmen
- Theories of Knowledge, How to think about what you know, Professor Joseph H. Shieber, Lafayette college
- What we mean by experience, Marianne Janack
- Does measurement measure up?, how numbers reveal and conceal the truth, John M. Henshaw
- An enquiry concerning human understanding, and selections from A treatise of human nature; with Hume's autobiography and a letter from Adam Smith, David Hume; introduction by Thom Chittom
- Think again, the power of knowing what you don't know, Adam Grant
- Problems of knowledge and freedom, The Russell Lectures, by Noam Chomsky
- Philosophical explanations, Robert Nozick
- Think again, the power of knowing what you don't know, Adam Grant
- The accidental universe, the world you thought you knew, Alan Lightman
- A treatise of human nature, a critical edition, David Hume ; edited by David Fate Norton, Mary J. Norton, Vol. 1
- The notebooks of Paul Brunton, Paul Brunton
- The visible and the invisible, followed by working notes, Maurice Merleau-Ponty ; edited by Claude Lefort ; translated by Alphonso Lingis
- Theories of knowledge: how to think about what you, Joseph H. Shieber
- The hidden half, how the world conceals its secrets, Michael Blastland
- The signal and the noise, why so many predictions fail--but some don't, Nate Silver
- An inquiry concerning human understanding, with a supplement, An abstract of A treatise of human nature, David Hume ; edited, with an introduction by Charles W. Hendel
- An essay concerning human understanding, John Locke ; abridged and edited with an introduction by A.D. Woozley
- The problems of philosophy, Bertrand Russell
- Kinds of minds, toward an understanding of consciousness, Daniel C. Dennett
- The signal and the noise, why so many predictions fail--but some don't, Nate Silver
- Head in the cloud, why knowing things still matters when facts are so easy to look up, William Poundstone
- He is there and He is not silent, [by] Francis A. Schaeffer
- Truth and existence, Jean-Paul Sartre ; original text established and annotated by Arlette Elkaïm-Sartre ; translated by Adrian van den Hoven ; edited and with an introduction by Ronald Aronson
- Learning in depth, a simple innovation that can transform schooling, Kieran Egan
- Past and present, the challenges of modernity, from the Pre-Victorians to the Postmodernists, Gertrude Himmelfarb
- Mathematics and the search for knowledge, Morris Kline
- Critique of pure reason, Immanuel Kant ; translated by J.M.D. Meiklejohn
- Mathematics and common sense, a case of creative tension, Philip J. Davis
- An enquiry concerning human understanding, David Hume ; edited with an introduction and notes by Peter Millican
- Practical wisdom, the right way to do the right thing, by Barry Schwartz and Kenneth Sharpe
- Hume's moral epistemology, Jonathan Harrison
- The signal and the noise, why so many predictions fail-- but some don't, Nate Silver
- The internet of us, knowing more and understanding less in the age of big data, Michael P. Lynch
- Piaget's theory, a primer, John L. Phillips, Jr
- Conjectures and refutations, the growth of scientific knowledge, Karl Popper
- An essay concerning human understanding, by John Locke
- The accidental universe, the you thought you knew, Alan Lightman
- 36 big ideas, Great Courses professors
- Plato's theory of understanding, Jon Moline
- Teilhard's mysticism of knowing, by Thomas M. King
- The great unknown, seven journeys to the frontiers of science, Marcus du Sautoy
- The use of knowledge, conceptual problems and empirical confusions, Margret Buchmann
- The essential Piaget, edited by Howard E. Gruber and J. Jacques Vonèche
- The knowledge use process and staff inservice efforts in education, Joseph B. Rappa, William J. Genova
- The hidden half, the unseen forces that influence everything, Michael Blastland
- Critique of pure reason, Translated, with an introd., by Norman Kemp Smith
- The origins of knowledge and imagination, Jacob Bronowski
- The accidental universe, the world you thought you knew, Alan Lightman