I never used to understand people who wrote book reviews. You’ve already read the book, so writing a review isn’t going to help you decide whether to read it, and it’s an awful lot of effort.
But I’ve spent some time thinking about the matter, and I’ve concluded that there are five good reasons and two bad reasons to write a book review.
Good reasons to write a book review
1) You have an opinion
You have an opinion. In fact, you have many opinions. They’re all brilliant, and sharing them with the world will force everyone to acknowledge how brilliant you are. And, perhaps more importantly, how right you are.