A Workbook for Arguments builds on Anthony Weston's A Rulebook for Arguments to provide a complete textbook for a course in critical thinking or informal logic. The second edition additions: Updated and improved homework exercises to ensure that the examples continue to resonate with students. Increased coverage of scientific reasoning, demonstrating how scientific reasoning dovetails with critical thinking more generally. Two new activities in which students analyze arguments in their original form, as provided in brief selections from the original texts.