Amazon does not currently feature a review notification option for authors. If you would rather not constantly reload your book listings or visit Author Central every day, you might want to try review tracking for books with Ratings Catcher.
Ratings Catcher monitors your books across Amazon.com, Amazon.ca, Amazon.co.uk, iBooks, etc. You can receive notifications via email, Slack, RSS, and set the notifications to arrive hourly, daily, weekly, or monthly. The reviews we collect can easily be shared across social networks or even embedded on your website or blog.
One other advantage of using Ratings Catcher is that it helps you see reviews from readers in other countries, something you will miss if you just check Amazon.com. If you would like to try tracking your book reviews, start by signing up for a free trial at Ratings Catcher.