One of the agents I've queried has asked me to send my manuscript, and an author bio.
I've been frantically researching the methods and means of such a thing over the past 24 hours. Since my writing credits are few, I want to impress her with my exciting life. Only, as one can imagine, life is not so exciting in the suburbs with a 4-year old (read my post about birthday parties about in mid-October if you doubt it!)
Professional, yet brief. Compelling, but truthful. Personal, but not too personal.
Something that will help them sell the story. This is harder than writing the story!