It is a gift to authors when you write positive, honest book reviews. A bad review stings as well. Be thoughtful in what you say in your review. If you only slam the book, that does not help the author improve. If there is one thing you can praise even if you did not like the book, be sure to mention it.
In writing a positive review, here are some tips:
Think about and then write some stand out points you gleaned from the book. What section was most valuable to you and why? Did you become inspired to take some type of action as a result of what you read? Did the book provoke emotion in you? Why might someone else enjoy or benefit from the book? Be specific; vague statements of praise are rarely helpful to discerning, prospective readers.
Make sure you review more than one author or Amazon will think you are biased. I know two people who were banned for life from writing future reviews on Amazon because they had not written reviews for more than one particular person. Share the love!
Most reviews can be kept to 2-5 sentences, which does not take much time. You can write a much longer review, but it may not be necessary and be considered a rant.
For more good suggestions about writing book reviews, check out “How to Write a Good Book Review” by Alan Eggleston. For the actual mechanics on writing an Amazon review, read “How to Post a Book Review on Amazon“. On behalf of authors everywhere, we thank you for your time!