answer:I’ve been helped by some medical self-care and first aid guides. Both types of books can provide very practical, objective information; they might promote wellness over the long-term and relieve suffering, perhaps even save lives, in an acute situation. As for change-your-life books, no. I’ve found them to be nonsense. I once bought a book titled, “Solving the Procrastination Puzzle.” No, I’m not a big procrastinator – I generally do things on schedule and somewhat efficiently – but everyone has room for improvement. The book was badly-written and unhelpful, a complete waste of $12.