The Fifty Shades Series is a trilogy of erotic romance novels written by E.L. James. The story follows the relationship between a college graduate, Anastasia Steele, and a wealthy businessman, Christian Grey. The series explores themes of love, desire, and BDSM, gaining significant popularity and sparking discussions about sexuality. The first book, Fifty Shades of Grey, was published in 2011, followed by Fifty Shades Darker and Fifty Shades Freed. The series has been adapted into a successful film franchise, further expanding its reach and influence in popular culture. Despite mixed reviews, it has garnered a large fanbase worldwide.