This book has been written for students following the OCR AS Critical Thinking specification and is endorsed by OCR for use with units F501 (Introduction to Critical Thinking) and F502 (Assessing and Developing Argument). The text is designed for easy comprehension so that students can focus on the underlying skills and knowledge that they need to succeed in their exams. Key concepts are introduced simply and concisely, building in complexity as knowledge develops. - Guides students through the course with clear learning objectives - Gives them opportunities to apply key critical thinking skills with activities and exercises throughout - Helps them prepare confidently for unit exams with revision summaries, check-yourself questions and exam sections