I can't overemphasize that word. For collaborators to be effective, authors have to trust them. They don't want their secrets whispered to the media or shouted to their circle of acquaintances.
In my first meeting with authors, I assure them I'll never tell anything without their permission. That's my statement, but it's not enough. My behavior must prove my words.
With almost every book I've ghosted, the author has cried at some point and said, "I've never told anyone before, but . . ."
That's when I know the person trusts me; that's when I feel I'm at my best as a ghostwriter. The author accepts me as a person of integrity and as someone who cares. That's important to me.
When I write for others,
trust is the most important quality involved.