Students applying to Oxbridge are increasingly required to sit Oxbridge-specific admissions tests. These are usually aptitude tests, consisting of multiple-choice questions focused on critical thinking and problem solving skills. The most widely used is the Thinking Skills Assessment (TSA). This book introduces candidates to critical thinking and problem solving skills and their use in answering test questions. It includes a practice test, similar to the TSA, with answers and explanations and also guidance on the TSA Writing Task undertaken by applicants to Oxford. The book also refers to the tests for English, History, Physics, Mathematics and Computer Sciences.