For the sake of disclosure, I have not read the entire book yet, but went through it quickly, and know its tone and content. Also, I am a free-thinking, liberal, confident female, who (to paraphrase Mansfield) has studied men all my life (40+ years). I love men, and yet find many of them just tragically confused, unaware of what being a man is all about.
This book is worth reading by anyone who is interested in gender relations -- and aren't we all. It does not appear to me that it is an anti-woman book, as the first Amazon reviewer (below) suggests.
I absolutely agree with Mansfield's opinion that being a man is about having "confidence in risky situations". That negative reviewer was totally on shaky grounds (logic-wise) arguing that it is an insult to women (because to her, it meant that Masfiled thinks that courage is just a masculine trait).
Women can be as courageous, or more, as men. But that's not the issue. The issue is that if you are a woman, and you hapen to be shy, timid, or downright cowardly, you can still feel like a woman -- i.e. feminine, true to your gender.
Courage is not expected of women in our culture to the extent it is expected of men (though I hope it will gradually change because it is a sign of inequality). Many people -- men or women - have a hard time differentiating, on the gut level, between courage that may entail physical danger, and emotional/intellectual courage. Someone who is weaker physically may instinctively shy away from sticking his/her head out.
However, when a man is not courageous or confident, he simply cannot feel like a man, and loses self-respect -- which has a disastrous effect on his life, in his raltionships with women in particular, but also in relation to men; and that negatively affects his overall functioning in society.
I also agree with Mansfiled's assertion that a man cannot be a gentleman until he is a man first (in a true, fully encompassing sense of that word). That is a great insight -- helps me understand why men who are not gentlemen often lack personal courage.
Whether I am going to like or agree with everything in this book, or not, is not that important -- I look forward to reading every page anyway.
What I appreciate is that it has been written by a mature, thinking, outspoken, intellectually accomplished man. Therefore it gives me as a woman invaluable, thought-provoking insights. Worth every penny.