
Erika Mitchell, known by her pen name E. L. James, is a British author. She wrote the best-selling Fifty Shades series of erotic romance novels, which spawned a multimedia franchise including a film trilogy of the same name. Prior to this, she wrote the Twilight fan fiction "Master of the Universe" that served as the basis for the Fifty Shades series under the web name Snowqueens Icedragon. In 2019, she published her first book unconnected with the fictional world of Fifty Shades, The Mister, to negative critical reaction.
Excerpt from Wikipedia, available under CC BY-SA 4.0.

Fifty Shades as Told by Christian Trilogy Grey, Darker, Freed Box Set
2021
ISBN 9781728259444
Fifty Shades of Grey
2012
ISBN 9780385363129
Cincuenta sombras Cincuenta sombras liberadas. III
2012
ISBN 9788425349966
Isaac Laquedem
2009
ISBN 9781412186193
Cincuenta sombras de Grey
2012
ISBN 9789588618760