- Libro electrónicoThe Gay Science (Barnes & Noble Library of Essential Reading)Friedrich Nietzsche
- Libro electrónicoThe Gay Science (Barnes & Noble Digital Library)Friedrich Nietzsche
- Libro electrónicoThe Antichrist (Barnes & Noble Library of Essential Reading)Friedrich Nietzsche
- Libro electrónicoHuman, All Too Human (Barnes & Noble Digital Library)Friedrich Nietzsche
- Libro electrónicoProlegomena to Any Future Metaphysics (Barnes & Noble Digital Library)Immanuel Kant
- Libro electrónicoProlegomena to Any Future Metaphysics (Barnes & Noble Library of Essential Reading)Immanuel Kant
- Libro electrónicoIntroduction to Logic (Barnes & Noble Library of Essential Reading)Immanuel Kant
- Libro electrónicoCritique of Practical Reason (Barnes & Noble Library of Essential Reading)Immanuel Kant
- Libro electrónicoCritique of Practical ReasonImmanuel Kant
- Libro electrónicoThus Spoke Zarathustra (Barnes & Noble Signature Editions)Friedrich Nietzsche
- Libro electrónicoTwilight of the Idols (Barnes & Noble Digital Library)Friedrich Nietzsche
- Libro electrónicoThe Philosophy of Friedrich Nietzsche (Barnes & Noble Library of Essential Reading)H.L. Mencken
- Libro electrónicoTwilight of the Idols (Barnes & Noble Library of Essential Reading)Friedrich Nietzsche