EL James, the author of the 50 Shades of Grey trilogy made an astonishing £12.6 million in just eight months after her trilogy became an international best-seller. The book sold 70 million copies, netting James profit of £8 million after tax and costs.
So how is she enjoying the trappings of success, and how does she compare to the other multi-millionaire authors?
The figures were revealed in a number of newspapers, after scrutinising her returns to Companies House. The £8 million profit came in the eight months to September last year.
The richest self-made Brits
£12 million payday for 50 Shades author
The Monaco-based billionaire is said to be worth more than £4.2bn, with Topshop and Topman among the country's most successful brands. His first job, aged 12, was working for a shoe importer. He set up his first business at 15 with a £20,000 loan, on-selling imported jeans from the Far East to London-based retailers.
Branson's first successful business venture came in 1976 when he set up Student magazine aged just 16. In 1970, he founded a mail-order record retailer and within a year had opened his first shop on London's Oxford Street – Virgin Records. His fortune is estimated at £3.085 billion, according to the Sunday Times rich list.
The inventor gave his name to the household vacuum cleaner that would make him a fortune of £1.45 billion. James Dyson first reinvented the vacuum cleaner with the launch of his dual cyclone bagless 'G-Force' cleaner in 1983, followed more recently by the hand dryer and the fan. In 1997, Dyson was awarded the Prince Phillip Designers Prize, and elected a Fellow of The Royal Academy of Engineering in 2005.
Founder of Specsavers, Bristol-born Dame Mary Perkins is Britain's first female self-made billionaire, reportedly worth £1.15 billion. The 67-year-old and her husband Douglas, 68, founded the eye-care company in 1984 and they can now boast more than 900 stores across Britain. Perkins was made a Dame Commander of the Order of the British Empire in 2007 as recognition for her work.
Recently retired Beckham is the highest earner in British sport, according to the Sunday Times Sport Rich List. 'Brand Beckham' that has seen the 38-year-old amass a fortune of £165 million from endorsement deals and salary payments from his company, Footwork Productions, over the last decade. But Beckham is still some way off the richest sportsman in the world - golfer Tiger Woods, who is worth a staggering £570m.
Yorkshire Tory peer Lord Kirkham entered the billionaire league in 2010 when he sold his furniture company, DFS, for a reported £500m. In 41 years, Kirkham grew the brand, which started on the outskirts of Doncaster, to 79 stores, three factories and more than 2,600 staff. He received a Knighthood in 1995, a Peerage in 1999 and a CVO in 2005. He now owns a large share in Iceland supermarkets and is worth a reported £1.1billion.
The former Beatle takes the top spot in the Sunday Times Rich List of musical millionaires, sharing a £680 million fortune with his wife Nancy Shevell. McCartney has topped the list of wealthy musicians every year since it was formed 1989 when his fortune was estimated at £80 million.
The chairman of Carphone Warehouse and Talk Talk, Essex-born Dunstone, 46, started his retail empire selling mobile phones from his west London flat in 1989. His fortune rose by £396 million to £1 billion in a year, after the demerger of Carphone Warehouse and Talk Talk. Carphone Warehouse is Europe's largest independent mobile phone retailer and Dunstone was awarded a Knighthood in 2012 for services to the mobile communications industry.
Author of the hugely successful Harry Potter series, Joanne Kathleen Rowling, has a net worth of £560 million – making her the world's richest author. Rowling wrote the first Potter books on a manual typewriter while a single mother living on benefits. The manuscript for the first Harry Potter novel was rejected by 12 publishers and when finally accepted, Rowling received an advance of just £1,500. Harry Potter is the highest-grossing film series of all-time and the brand has been estimated to be worth as much as £10 billion.
East-ender Lord Sugar, best known for his no-nonsense judging on BBC1s The Apprentice, started his career at 16, selling car aerials and electrical goods out of a van he had bought with savings of £50. In 1968 at the age of 21, Sugar started home electronics company, Amstrad (short for Alan Michael Sugar Trading). By the age of 40 he was worth about £600m. Sir Alan sold Amstrad in 2007, and is now worth a reported £770m, with much of his wealth coming from his extensive property empire.
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But James (whose real name is Erika Leonard) isn't sidetracked by the trappings of wealth. The Daily Mail revealed she had given £1.1 million of the money away to charity.
The Mirror reported that she and her husband took £3,900 salaries and dividends of £355,000 each in the period. It also said that she still lives in the same terraced house she bought 15 years ago - well before her trilogy brought her fame.
The Sunday Times reported that the only thing she has splurged on has been her new car - a Volkswagen.
However, there's still an opportunity for more money and yet more fame, as the books are set to be turned into a film. The deal is reportedly worth £3 million to James.
How does she compare?
So how does her wealth stack up against the other mega-wealthy authors?
It appears that she has an awfully long way to go if she wants to trouble those at the top of the pile. James Patterson took the top spot in Forbes' latest list of the world's highest-earning authors, making $94 million between the summer of 2011 and 2012. During that time he published an incredible 14 titles.
He was followed by Stephen King, who made $39 million thanks to his book about JFK, and John Grisham who made $26 million. Jeff Kinney, who writes the Wimpy Kid books, made $25 million, Bill O'Reilly $24 million, and both Nora Roberts and Danielle Steel made $23 million.
However, EL James has out-earned a number of other stellar names (at roughly $19 million). Forbes found that JK Rowling made $17 million, George RR Martin made $15 million for the books on which the TV series Game of Thrones is based, and Stephanie Meyer trails by some distance at $14 million.
Of course it's early days for EL James. For authors like JK Rowling, these are earnings from the books she finished six years ago (and started 15 years ago). Whether James will be raking in this sort of cash a decade or more down the line is another question.
Top 10 expensive celebrity mistakes
£12 million payday for 50 Shades author
The N-Dubz singer was allegedly caught fixing up a drug deal between an undercover Sun reporter and her dealer friend and part-time rapper Mike GLC.
The illegal activity is likely to cost Tulisa dearly as she has cashed in on her youth appeal through the story of her troubled background and claims to have shunned drugs to grow her music career.
The modern day sporting hero and winner of seven consecutive Tour de France competitions saw his reputation plummet last year when he was found guilty of doping and cheating his way through is career.
Armstrong was stripped of all his titles, ordered to return his prize money, and sponsors couldn't drop him quick enough. He is also being sued by teammates. It is estimated that it will cost him $125m.
After possibly one of biggest public meltdowns in history, the actor lost it with the creator of his TV series Two and a Half Men. His outburst together with outlandish behavior including alleged drug benders, porn stars and drink problems, lead to Sheen being fired from the show. He reportedly earned $1.25m per episode, meaning he lost $36m for the whole season.
At the height of her short career, teen star Lohan was commanding around $7.5m per movie at four movies per year. Yet the pressures of fame at a young age got to The Parent Trap and Mean Girls star, seeing her life spiral out of control as she became embroiled in allegations of drug and alcohol abuse, jewellery theft, and drunk driving. Her earnings quickly plummeted and remain he doldrums.
Singer Chris Brown's reputation became muddied in 2009 amid allegations of assault against his then girlfriend, pop diva Rhianna.
The alleged offense took place the night before both stars were set to perform at the 2009 Grammy Awards. Brown's arrest on felony charges and the brutal images of Rhianna's battered face, led to an huge media frenzy. Overnight, Brown went from whiter-than-white Wrigley's gum and milk spokesperson to the most loathed man in music.
Fashions favourite supermodel could do no wrong until she appeared in the Daily Mirror in 2005 snorting "line after line" of cocaine at a recording studio with then-boyfriend and known drug addict, Pete Doherty.
Dubbed 'Cocaine Kate' by the press, Chanel promptly dropped Moss from their advertising, as did fashion house Burberry and Swedish brand H&M. But Moss managed to recover quickly from the scandal and is now the face of Rimmel, Dior and Mango.
Infidelity cost the golf star more than his marriage and a staggering $100 million divorce settlement – shaving brand Gillette was one of many brands to pull its endorsements following the incident in 2009. Woods also lost deals with Gatorade, AT&T and Accenture following the scandal.
Photos of the Olympic swimmer smoking a marijuana pipe saw Kellogg's pull its sponsorship of the sports star to protect their brand images. Phelps also received a suspension from competition and USA Swimming pulled financial support for three months.
Brazilian footballer Ronaldinho was axed from his Coca-Cola sponsorship deal after appearing with a can of Pepsi during a press conference at Atletico Minerio. The mistake cost the star £1 million in unpaid earnings as his £500,000 per-year contract was set to run until 2014.
While serving as president, Bill Clinton became embroiled in an embarrassing high profile scandal that looked set to cost him his career. The former president was accused of having sexual relations with intern Monica Lewinsky and harassment charges against Paula Jones.
Clinton was acquitted of perjury and obstruction of justice charges and made a public apology, which only served to strengthen his reputation. He went on to serve two presidency terms and left the office with the highest end-of-office approval rating of any U.S. president since World War II.