Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not well put together.

This book has a lot of good information, but it doesn't explain itself very well. There are a number of incorrect formulas from bad editing. The author doesn't explain where he is getting different numbers and results from. He skips too many steps when explaining things. If you already have a strong understanding of radiation therapy physics this book would be fine, but if you're trying to learn it this book is lacking.