The Style Guide is constructed as a series of street-style shots featuring some of the most stylish people in the menswear industry.
But unlike most style books, it focuses on practical analysis of every image, picking up why the outfit works in terms of texture, colour or cut.
Most street-style compilations are simply a series of pretty images - that often look good because of the location, or the individual, but not necessarily the clothes.
The Style Guide, by contrast, shows why these images and these outfits work using ideas of formality, colour combinations and mixing up sartorial and more casual clothing.
The effect is an attractive summary of the most important style advice discussed on PermanentStyle.com over the past decade: the Italian Background, the sliding scale of formality, trousers for grey jackets, dressing for a modern office, and so on.