Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Everyone should know about Heiner Muller!

I studied theater production in college, and the anthology of drama I had to buy for my theater history courses included the play Hamletmachine. Hamletmachine was not included in the required reading for my course, but I happened upon it one day flipping through my textbook, and fell deeply in love. If you are interested in feminism, socialism, or Brechtian theater, you will adore this book. It includes a history of Heiner Muller for beginners, interviews, and his most "influential" plays. Truthfully, I haven't read them all yet. I keep coming back to Hamletmachine, as I find it so beautiful that I read it obsessively over and over (I've even gotten Ophelia's monologue tattooed over a large chunk of my body!) It is awesome to hold this book in my hands and feel this man's energy, and learn more about him, and what moved him to create such beautiful poetry.