Instruct: Classify Amazon reviews into positive or negative sentiment
Query: totally unnecessary

The only reason you would need cliff notes for this book is if you are lazy or short on time and theres a test the next day. Yet the cliff notes arent descriptive enough for you to get the whole book. I can understand needing cliff notes for the confusing dialect of "tale of two cities", or the background and analysis for "Brave new World", but going through the Catcher in the Rye is a breeze, and the book is enjoyable. Its one of my favorite books ever. Dont even bother with these cliff notes.