We hear every day “Please write a review for my book” from authors (and app producers, movie people, businesses, etc.). And many wonder why they should leave a review.

The simple answer is a little thing called algorithms. The more reviews, the higher your product–book in this case–moves in the listings thanks to those algorithms. No reviews=no movement. And upward movement is what it’s all about. Numbers are everything to businesses – and make no mistake, writing is a business.

Reviews don’t have to be in depth or extensive. Something as simple as “I really liked this because it made me feel good” helps with the numbers.

So do your favorite author (or whatever) a favor and leave a quick review for them. They’ll appreciate it, I promise.