A book review is a descriptive and critical/evaluative account of a book. It provides a summary of the content, assesses the value of the book, and recommends it (or not) to other potential readers.

A book report is an objective summary of the main ideas and arguments that the book's author has presented. The purpose of the report is to give enough information to help decide whether the book will be of use or interest to any potential readers.

Instructors often assign book reviews/reports as practice in careful analytical reading which reinforces how to make connections between texts or ideas and encourages you to go beyond memorization of facts by encouraging critical thinking skills.  As a reviewer, you bring together the two strands of accurate, analytical reading and strong, personal response when you indicate what the book is about and what it might mean to a reader (by explaining what it meant to you). This is a life skill that can help you any time you need to make a choice, whether it’s purchasing a new car, shopping for insurance, or even choosing a home.