- EbookReasoning and Formal LogicRichard L. Epstein
- EbookThe Pocket Guide to Critical ThinkingRichard L. Epstein
- EbookThe Fundamentals of Argument AnalysisRichard L. Epstein
- EbookCause and Effect, Conditionals, ExplanationsRichard L. Epstein
- EbookAn Introduction to Formal LogicRichard L. Epstein
- EbookReasoning in Science and MathematicsRichard L. Epstein
- EbookHow to ReasonRichard L. Epstein
- EbookPrescriptive ReasoningRichard L. Epstein
- EbookHow to Reason + Reasoning in the SciencesRichard L. Epstein
- EbookClassical Mathematical LogicRichard L. Epstein
- EbookGuía Breve para el Pensamiento CríticoRichard L. Epstein
- EbookAmerican GesturesAlex Raffi
- EbookConventional GesturesRichard L. Epstein