The best selling trilogy, began as a Twilight-based fan fiction story, but has become much more, and it has the sales receipts to prove it.
Twilight is a series of four vampire-themed fantasy romance novels by American author Stephenie Meyer.
About the life of a teenage girl who falls in love with a 104-year-old vampire named Edward Cullen.
Fifty Shades of Grey is set largely in Seattle, it is the first instalment in a trilogy that traces the deepening relationship between a college graduate, Anastasia Steele, and a young business magnate, Christian Grey.
It is notable for its explicitly erotic scenes featuring elements of bondage and sado masochism.
Read Book Review of Fifty Shades of Grey (kindle version)
Amazon UK link to 50 shades of gray (paper back version)
Amazon.com link to fifty shades of Grey (paper back version)
The book's erotic nature and perceived demographic of its fan base as being composed largely of married women over thirty led to the books being dubbed "Mommy Porn" by some news agencies.
50 Shades of Gray has also been reportedly popular among teenage girls, and college women.
It has understandably raised some controversy and reviews and reviewers have largely been split in their opinions of it
It has set the record in the UK as the fastest-selling paperback of all time surpassing the Harry Potter series.
Mean while the film rights have been sold and E L James is one happy lady.