In this book, you will find 4 mock papers. Each one contains 100 questions in a Best of Five (BOF) format. Self-assess, try to complete each paper within 3 hours, check out your answers, read the explanation, and re-read accredited medicine textbooks to fill in the gap in your knowledge. Each question has an “objective”; try to review what the objective is about. This is the only self-assessment book specifically written to imitate the MRCPI part I examination. The first 3 mock papers have been updated; COVID-19 can be found in every paper. The 4th mock paper is a complete addition, concentrating on COVID-19, women’s health, novel subjects, new examination themes, updated guidelines, and recently approved treatments.