I would recommend this book to Men anywhere from age 16 to 60. Men should already know how to be 'Men' but sadly most of us aren't really in touch with our own masculinity in modern times.
"The Rational Male" is a book written by Rollo Tomassi, a pseudonymous author and prominent figure in the manosphere, which refers to a loosely connected online community of men interested in men's rights, masculinity, and gender dynamics. The book was first published in 2013 and has gained popularity among men seeking advice on relationships, dating, and intersexual dynamics.
The central theme of "The Rational Male" is Tomassi's critique of conventional notions of masculinity and relationships, with a particular focus on how gender dynamics play out in dating, sex, and long-term relationships. The book argues that traditional social and cultural narratives around gender roles and relationships are flawed and need to be reexamined from a more rational and evolutionary perspective. Tomassi draws heavily from evolutionary psychology, evolutionary biology, and his own experiences to support his arguments.
It's important to note that "The Rational Male" has been controversial and has received criticism from some quarters for its views on gender and relationships, as it promotes a somewhat controversial perspective that is not universally accepted. Some readers find value in the book's insights on male-female dynamics and relationships, while others have criticized it for its perceived misogyny or lack of scientific rigor.