Fifty Shades of Grey is a bestselling erotic romance novel by E.L. James. The book follows the relationship between Anastasia Steele, a college graduate, and Christian Grey, a wealthy businessman with particular sexual preferences. The story explores themes of dominance, submission, and BDSM. With its explicit content and steamy scenes, Fifty Shades of Grey became a cultural phenomenon, igniting conversations about sexuality and pushing boundaries in mainstream literature.