I think when people hear about a celebrity writing a book of any kind, the assumption is that it was dictated to a ghostwriter.

It Books. Early life
Molly Kathleen Ringwald was born in Roseville California just outside of Sacramento the daughter of Adele Edith (née Frembd) a housewife and chef and Robert Scott "Bob" Ringwald a blind jazz pianist. She was considered to be the muse of writer/director John Hughes.

She currently plays Anne Juergens in the ABC Family show The Secret Life of the American Teenager. Having appeared in the John Hughes films Sixteen Candles (1984) The Breakfast Club (1985) and Pretty in Pink (1986) Ringwald is part of the 80's "Brat Pack" and has been called the greatest teen star of all time.