So, I started imagining which book of mine would be best for Bill. I think Saying I Do to the Scoundrel will fit because the heroine has a business-like spirit when she hires her own kidnapper.
For Ms. Gates, I would recommend Redeeming the Roguish Rake because the heroine deeply believes in helping others.
In case Oprah needs a gift, I'd suggest To Win a Wallflower because the underlying theme of the book is about women's empowerment.