Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An excelent book for history lovers.

This is an astonishing book. Turkish speakers should immediately read Dr. Murat Belge's Guide of Istanbul (Istanbul Gezi Rehberi, Tarih Vakfi yayini.) after reading the Black Book. I believe this will be a very useful and complimentary reading and will definitely help the reader discover the magical world of Pamuk, where one loves to get lost.