I can't say I've ever let a bio influence whether or not I choose a book. I do, however, read the bio (sometime numerous times) while reading the book. I like knowing a tiny bit about the person who wrote whatever it is I'm reading. Sometimes I become curious about the age of the person, or the work history, based on what I'm reading in the story. Often I read the bio before I begin the book. To me, the author is a really important part of the story, and I want to interact with that as well as what the author has written. I think what the author chooses to write and how the author chooses to pose (assuming some of that, at least, is within the author's control and not dictated by publishers, which I know may not be the case) adds something to the experience of reading the story.
As far as reading a detailed bio as you might find somewhere on the net, I don't care so much about that unless I've read the story and I'm really interested in knowing more about that author. I would say it happens for me in perhaps one out of every 20 books I read. The blurb bio is usually enough for me.
|