This is a guest article by Richard Nolan. If you want to submit a guest article of your own, be sure to read the guest article guidelines.
If you are to write a book review, you definitely want to get some ideas on how to make it effective without spending too much time. You have already defined why exactly you need that: to reach out the publishers, to create an academic paper, or to write a blog post.
Whatever the reasons you have, the approach to writing a review is almost the same. However, if you create a review for your own book, you may skip some of the points, like reading the book as you have been working on it and know its content better than anyone.