This book is amazing. The authors have done a great job in presenting the basics and also the core of QFT in such a manner that one could read this book like a storybook. I commend the authors for making this book easy to understand. I feel that even those having a strong background in Mathematics and Physics would be able to get a better understanding of many concepts using this book. Even after deriving a concept from some other resources, I always refer back to this book in order to get better visualization and intuition. The sidenotes, diagrams, and the humorous writing style of the authors make it a fun read. ( In general, Physics authors take pride in making their books and articles difficult to read. But this book is different. A good example of what a "learn-by-yourself" resource should be ).