I don't usually accept comments with commercial links and especially ones that don't bother to talk about what they're sharing, but I decided to let the "comment" giving the lulu link go head. It's a link to a book titled: Biofeedback. You Are In Control. Feel. Think. Act! and is probably an affiliate link, though not mine, of course. Use at your own discretion. It did seem like it might be an interesting read for those interested in neurofeedback. Dr Karen