- Libro electrónicoWhat Is Art? (Barnes & Noble Library of Essential Reading)Leo Tolstoy
- Libro electrónicoWhat Is Art? (Barnes & Noble Digital Library)Leo Tolstoy
- Libro electrónicoMeno, Parmenides, and Theaetetus (Barnes & Noble Library of Essential Reading)Plato
- Libro electrónicoThe Sense of Beauty (Barnes & Noble Digital Library)George Santayana
- Libro electrónicoThe Sense of Beauty (Barnes & Noble Library of Essential Reading)George Santayana
- Libro electrónicoCritique of Judgment (Barnes & Noble Library of Essential Reading)Immanuel Kant
- Libro electrónicoCritique of Judgment (Barnes & Noble Digital Library)Immanuel Kant
- Libro electrónicoEcce Homo (Barnes & Noble Digital Library)Friedrich Nietzsche
- Libro electrónicoEcce Homo (Barnes & Noble Library of Essential Reading)Friedrich Nietzsche