The title could lead readers to believe that the book will cover a selection of male style icons, with what made them such and rich pictorial accompaniment, which is not exactly what the book is about. Instead you get chapters organized around specific items, in categories such as outerwear, trousers, shoes, underwear, tailoring, shirts and sweaters, and accessories.
Some categories are more comprehensively covered (for instance outerwear), while others, such as shoes and accessories could well do with being somewhat expanded (surely the sandal, desert boot, the basketball shoe, the work shoe / boot, loafer, driving shoe and deck shoe are far from covering it - especially not at the more formal side of things; similar for watches - while both the Moon Watch and the diving watch category are solid choices, they fall far short of covering even the basic types).
The individual chapters are from two to four pages long and present a brief description of the garment, how it came about / became popular, in some cases who made it popular, often who some of the main manufacturers are (this area is also far from comprehensive and different readers may well feel that some iconic producers have been left out). This is usually accompanied by several pictures, at least one of which is a full page shot.
So overall definitely a solid book but one you will want to complement with others, going into individual classes more thoroughly / comprehensively, if you are really interested in the subject. Definitely an excellent gift for those, though, who are in the stage of taking their somewhat more seriously, though.