Forty is the age that not only your brains are mature, but also the various brain areas are in balance. You have experience. You know what you’re good at. You know yourself a little. You’re a real man, you have responsibilities and influence. Now you can really show your worth! It is likely you’re now thinking: “eh ....”. Therefore, there is this book, to give you the tips and tricks on how to act like a man of forty. Workshops hide baldness, nose hair cut and stomach contents to interviews with Martine Delfos and Dick Swaab.