Instruct: Classify a given review into positive or negative sentiment.
Query: Great Read

Unlike other textbooks which cover very abstract notions from the first chapter on, Townsend does a very good job of explaining simple concepts that will prove to be invaluable towards sharpening one's physical intuition. Townsend does not pretend that it is profound and often cites other references that are more challenging to read so for the physics enthusiast, they appetite is satisfied nonetheless. In summary, his book is an excellent introduction to very fundamental aspects of wave mechanics using both bras and kets plus operator notation. A must-read if you want to ground your understanding of quantum mechanics in very accessible and tangible physical arguments, especially if you have a bad memory like me.