Inch head
Inch head is divided into round inch, square inch, plate inch, hairy inch.
Round inch means that the top of the head as a whole is round, and the sides are pushed up
Square inch, as the name suggests, is a square shape as a whole, just without the angles. Plate inch, the top of the head is very flat, and very clean and sharp. But this is not a good cut for people with a pointy head.
The hairy inch, divided into long hairy inch, short hairy inch. Long hairy inch of the whole is also a round. The difference with the round inch is that the top of his head is trimmed out with thinning shears. Short hair inch is also, just a little shorter than the long hair inch.