The tome - described as part memoir, part guide - is expected to focus on Glanville's experiences in romance, Us Weekly says.
The Real Housewives of Beverly Hills star, who divorced actor Eddie Cibrian in 2010 following his alleged affair with LeAnn Rimes, is also asking fans for help choosing a title for the book.
Fans can choose from I'd Leave Me Too, It's A Breakup... Not Cancer and Don't Drink And Tweet... and Brandi's Other Breakup Blunders and submit their favourite title to Glanville on Twitter before October 5.
"I absolutely can't wait to add author to my resume and to share all of my breakup blunders with my faithful supporters, fans, and hopefully the entire world," Glanville said. "Buckle up, it's going to be a bumpy ride!"
Meanwhile, Gallery Books' Jennifer Bergstrom said: "I think women are going to get a kick out of Brandi's no holds barred attitude."
Glanville's book is due to be released early next year.