This is the second in a series of sourcebooks charting the reception of Avicenna (Ibn Sīnā, d.1037) in the Islamic East (from Syria to central Asia) in the 12th-13th centuries CE. Moving on from the metaphysical and theological concerns covered in the first book, this volume looks at issues in logic and epistemology in the reception of Avicenna’s thought. Across dozens of authors and hundreds of passages, the translated material covers a wide range of topics including the subject matter of logic, the nature of knowledge and self-knowledge, questions in philosophy of language and syllogistic theory, and paradoxes.