In the four months I've been seeing my therapist, she has never talked about herself. Not once. Since her approach is analytical I suspect she's mostly blank slate. I mean she hasn't said anything about it so I'm just guessing. So far this has not bothered me. I've googled her a bit and found her FB account. One of her profile pictures is with her kids so I know she has two kids. I don't really care about her personal life and I don't think about what she does in her private time. I prefer it that way: I became completely obsessed with my ex T and I don't want to recreate that kind of unhealthy obsession. So far my T's blank slate approach suits me.