A book review is a detailed description, critical analysis, and/or assessment of a book's quality, meaning, and relevance, generally based on earlier research on the subject. Reviews are typically 500-2000 words long; however, they can be longer or shorter depending on the length and complexity of the book being evaluated, the review's overall goal, and whether the review examines two or more books on the same topic. Professors give book evaluations as practise in critically reading complicated scholarly materials and to test your abilities to properly synthesis research in order to develop an informed stance on the topic. A critical book review is not a synopsis or a book report. It is a reaction paper in which the material's strengths and shortcomings are examined. Descriptive review and critical review are two general approaches to reviewing a book. Although it is vital to think critically about the study subject under examination before you begin writing, there is no definitive methodological technique to producing a book review in the social sciences.