Is it important to you where they grew up and where they currently live? Do you want to know about their family? Their pets? What about their education? Do you like to know a little, a lot, or only those details pertinent to their writings?
What about their actual writing? Do you care to know why they like to write and what they like to write? Would you be interested in learning something about their writing process or how they began writing?
What is the most interesting detail you remember ever reading in an author bio?
What kind of author bio details make your eyes glaze over?
Your help in this matter will be ever so much appreciated.