Reviewer is a free theme for WordPress created by Dumitru Brinzan.
Reviewer is a unique theme for review-type blogs with a simple and intuitive layout and design. Works great for review websites about books, wine, movies, games, even food recipes.
(Description "Reviewer" Theme from wordpress.org)
You can download Reviewer for free via the provided download link and include it into your themes folder of your WordPress installation. Also you can directly search for it in the WordPress admin interface in the themes section and install and activate it from there.
More information, screenshots and reviews of Reviewer Theme can be found here.