Critical Thinking is a core skill needed to make all your studies more effective. This totally revised and updated book is a must if you want to find out how to develop your own arguments and evaluate other people's. Specifically, you will need to look at others' assumptions and their use of evidence. Learn too how to spot, and rectify, weaknesses of your own. An indispensable book, especially for students following the OCR AS-level course in Critical Thinking.