Anyone that knows anything about fashion has to remember that famous hairstyle that Posh paraded around not all that long ago. It was dubbed the "Pob." It wasn't created by some new startling technique it was simple a combination of an undercut combined with the old standby "the Bob." It is simple enough that any Professional hairstylist can easily do it. Here's a step-by-step overview to create the Pob.
One:Create quadrant sections by making a center part from front to back. You now have two sections, which you are going to part into four sections. Section from the top of the crown to the back of ear and do the same for the other side.
Two:The back sections are in line for the first work. If you feel in the center back of the head, you will feel the occipital bone. From this point, take a diagonal section from the part to the bottom of the ear at the back. Repeat for other side and clip the hair so it doesn't interfere with what you are doing. Now you will have what looks like an inverted "V" section. Perform a uniform cut on this section, but strive to keep it soft and feather like, as this is the undercut. What you have just accomplished here if done correctly is to remove the heavy bulky hair from underneath. It stands alone from the rest of the cut.
Three:You have completed the undercut, so now you must continue cutting the rest of the hair using the graduated bob techniques. In this case, though there should be an increase in the side areas of length. You want to texture the back hair so it fits in well with the overall cut and this is best done by thinning out the weight of the hair ends. Create this look from the crown layers to the outline, which is longer. This section is in front of the ears. Don't be carried away by over cutting the weight of the outline, otherwise, you would not have the longer hair requirement needed in front of the ears. This is what gives the style its character. You can be versatile with the way you shape the fringe.
Now in case you don't remember or are not very familiar with the graduated bob it used to be called the Mary Quant look. That was before Victoria Beckham re invented it to combine this cut with the undercut which turned out to be the Pob.
The graduation technique used for this cut can subtly create a lift to the outlines or you can even be creative with the shape by a layered cut. Looking back into the late 70's to early 80's you will see that some of the pop groups who sported this look had the shape of the outline to the longer layers.
It is not difficult to create the graduated bob. Section the hair into four just as you did in step one above. Now starting on the front side, you want to cut an outline of about one inch from the bottom of the ear. Attempt to closely cut to the head. Staying on that same section, grasp the hair approx one inch from the head and cut off an inch from the same outline.
Comb down the next section and grasp 1 ½ inches from the head using the previous section for a guideline cut on the underneath line. Continue to work up the head section by section ensure you increase your space when you work on the side of the head. Repeat all of these steps for the back of the head.