PhilPapers is a comprehensive index and bibliography of philosophy maintained by the community of philosophers. We monitor all sources of research content in philosophy, including journals, books, and open access archives. We also host the largest open access archive in philosophy. Our index currently contains 3,029,021 entries categorized in 6,146 categories. PhilPapers has over 420,000 registered users.

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We're excited to announce that Bobby Noble's comprehensive bibliography of books on logic has now been integrated with PhilPapers. Many thanks to Bobby for this contribution!