EMILY BRONTE, duck!  JESSICA SIMPSON set to wield pen to hone literary ambitions.  NO Chicken of the Sea says she when one ponders erudite wordplay.

Desperate to ditch her “dumb blonde” reputation, Jessica  has decided to become an author!

After her movies, such as “Employee of the Month” bombed, the 33-year-old now has zero interest in a return to acting, say sources. So she’s decided on another, more sophisticated, career. And in a bid to hone her literary skills, she’s been reading classic American novels.

“Jessica is mortified that she’s still widely regarded as a bimbo,” said an insider. “She’s proven herself as a successful fashion designer, witty TV host and weight-loss guru. But no matter what she does, it’s as though people only see her as a busty dingbat.”

The mom of two – who’s currently engaged to former pro football player Eric Johnson, 34 – gained a reputation as an airhead while appearing on her MTV reality show, “Newlyweds: Nick & Jessica,” where she once got confused over whether Chicken of the Sea brand tuna was actually chicken or tuna.

She’s since branched out and launched a billion-dollar fashion empire. Now, she’s ready to conquer the literary world.

“Jessica’s convinced the best way to reinvent her image is to write books, the first of which will be a self-help guide drawing on her life experiences,” said another source.

 “She’s also talking about writing fiction and some romance novels. Jess loved reading ‘Fifty Shades of Grey’ and told hubby Eric, ‘I could’ve written that!’ She’s convinced she’s got what it takes to be a successful author because pretty much everything she’s ever touched has turned to gold.”