Kate Spade’s best friend, Elyce Arons, has sold a memoir about their relationship to Simon& Schuster

Kate Spade’s best friend is writing a memoir about her relationship with the tragic designer, Page Six has learned.

Sources say Simon & Schuster’s Gallery Books has acquired Elyce Arons’ tome, which chronicles their decades-long friendship and business partnerships.

Arons helped found both the Kate Spade label and Spade’s latest project, Frances Valentine, with her friend.

The book, titled “We Might Just Make it After All,” tells the story of how they met at the University of Kansas in 1981, during which they bonded over their love of the “Mary Tyler Moore Show” and ‘aim to come to New York to attend. make it big.

Arons and “Katy,” as Elyce called her, “lived their wildest dreams and wild adventures without realizing their brand would achieve iconic status,” according to a source close to the book.

We hear that Hollywood is already going in circles.

Sources say Arons’ book ends before Spade’s suicide in 2018. (We’re also told it creates no behind-the-scenes friction and that insiders, including Spade’s ex-husband Andy, are just as comfortable with the project).

Spade left Kate Spade in 2007 after Liz Claiborne purchased the company. In 2016, after Spade waited out a non-compete period, she and Arons launched Frances Valentine.

Arons remains the CEO of this brand.