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It is a good and relevant book about people skills, which gives you a good skill set for developing assertiveness. I wanted to read more about assertiveness and were choosing between different books which were covering this topic I am glad I chose this one.
It's one of those books i'll definitely keep in my library to refer to. The first 50 or so pages have great information. Then it gets back to more basic info but overall very glad i read it and will refer to it often.