From XY to the feeling of male identity, which stands as the outcome of man s evolution, the road is long and full of pitfalls. Masculinity seemed to be self-evident: radiant, powerful, and the natural opposite of feminity. The last three decades have blown these age-old obvious facts to shards. Because women have undertaken to redefine themselves, they have compelled men to do the same... The old man is dying, leaving in his stead another man, a different man who is being born before our eyes and whose outline is barely visible. This book is situated in an intermediate period where nothing is very clear and where imagination is sometimes necessary to make up for the absence of knowledge .