A rather boring book about the fact that you need to talk to your customer before, during and after product development. A small part of Marketing 101 dressed up in new clothes. Sigh, I get bored about this trash…

If you are a non-marketer, I suppose it may have some value, but then you miss a lot of other stuff.

You can skip this one if you haven't been hooked on the "new Lean" hysteria.