Well Designed book
I just read a book called Well Designed: How to use empathy to create products people love.
It has brilliant and simple concepts that we can apply to any kind of business and I'd like to share with you three insights from it:
The best way to empathize and truly solve someone's problem is to live and feel it firsthand.
To define a value proposition, ask and answer "what can someone do AFTER using your product or service that she couldn't do BEFORE buying it?".
Ask yourself: "How do you make your customers kick ass every day?".
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In overall, just like in any consumer insights and innovation project, the book is about how to ask better questions instead of just getting answers or confirmations of your hipotesis.