I red some blogs but not yet the books. I will do. I understand and I agree I should interact with users/business to see If my idea can solve their problem but

I red some blogs but not yet the books. I will do. I understand and I agree I should interact with users/business to see If my idea can solve their problem but my concern is I don't have yet the product to show it to them. I wanted to get some feedbacks from experiences that someone got. I thanks for the link. I will try to follow it.