Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
We use this book for a class at our law school and this book is a great and straightforward introduction to small business law. It is very readable as it doesn't include a lot of legalese, but offers a wide variety of tips and options to help you find more information if you need it. With this book you can learn the basics of small business law in order to select a proper business model that works for your needs.