To define the A Court of Thorns and Roses book series as a phenomenon would be to undersell its popularity.

Taking over social media by storm, the series by writer Sarah J. Maas is a multiple New York Times Best Seller winner and has earned plenty of accolades and awards—not to mention widespread acclaim by its fans.

Sometimes considered a Young Adult saga, it is best defined as a New Adult series. This genre shares many similarities with young adult books yet appeals to an older audience by including mature characters and adult content.