Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Brillian Book

I love reading about relativity theory and quantum physics. I don't have a background on neither so I need a book who be clear and enjoyable to read at the same time. This book is both. George Gamow makes both subjects seem easy to understand and describes them in a fun and cute way. I recomend this book to anyone who is intersted in physics.