The TOWIE star, 29, confirmed her new career move on Saturday via Twitter (7 March).
She tweeted: "So excited to announce my debut novel with @_celebritease! Can't wait for everyone to read it."
Jessica, who already has her own clothing line, reportedly signed a three-book deal with Totally Entwined, the company behind Stacey Solomon's debut novel Walk On By.
According to The Sun newspaper: "[The first book] tells the story of a budding shoe designer making her way in the celebrity world."
Far from being erotic fiction like Fifty Shades Of Grey, though, Jess' novel is expected to be a 'sweet romance' and will be published in July.
So excited to announce my debut novel with @_celebritease! Can't wait for everyone to read it— Jessica Wright (@MissJessWright_) March 7, 2015
The news comes after Jessica was spotted looking gorgeous while filming TOWIE scenes in Essex.
The star, who is also a successful singer, stunned in a blue zip suit from her own range, With Love Jessica.
Looking immaculate as always, she seemed happy and relaxed after finally getting closure with ex-boyfriend Ricky Rayment.
In scenes aired this week, mutual friend Bobby texted Jess to tell her that she and Ricky were now on the same page, and he has vowed not to talk about her behind her back.
Jessica told the official TOWIE website: "I'm glad I received that message from Bobby. It's been done and dusted for a while but that confirmed he might stop talking about it now.
"This is good. At the end of the day why does he have to keep going on about it? It's a good thing it happened and we can both drop it now."
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