Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Interesting but a difficult read

I schlogged through the first 35 pages and found this book a difficult read. It is like reading a college psych book. The author throws out difficult to understand terms and concepts which he too briefly defines. I am reading further, but I cannot give this book to the person I purchased it for because he would never get past the first 20 pages.