A bit dated but key ideas still valid,
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This review is from: Positioning: The Battle for Your Mind (Kindle Edition)
It provides a good intro into the idea of positioning, however do not expect too much of this book, I think anyone looking to deep further into this topic should have to complement it with other readings. I give it three stars because I think the key ideas are still valid and the style is quite readable, however this is quite a short book and most of the examples and cases sound a bit dated now since they are from the mid-80s.