"Fifty Shades of Grey" is a romance novel written by E.L. James. It follows the relationship between a college graduate, Anastasia Steele, and a wealthy businessman, Christian Grey. The story explores themes of love, desire, and power dynamics, particularly through the lens of BDSM (Bondage, Discipline, Sadism, and Masochism). The book gained significant popularity and sparked discussions about sexuality and consent. It is the first installment in a trilogy, followed by "Fifty Shades Darker" and "Fifty Shades Freed." The series has also been adapted into a successful film franchise, further expanding its reach and influence in popular culture.