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

This book is interesting and helpful, but not a book to just read through. It can be difficult to get through, not because I can't understand what she's saying, just because she writes in a complex way that doesn't lend itself to an easy read. More of a book to pick up when you're already going somewhere and say, "What can we do at such-and-such?"