Cube solving (part 1) 
To make understandable explanations for solving the Cube, it's necessary to give each part of the Cube definite names. On my site, the parts of the Cube are named as follows:
The Rubik's Professor Cube consists of the following components:
 8 corners: 
 36 edge pieces, 
which can be subdivided into (based on their position): 

24 outer and 
12 middle edge pieces 

 54 side pieces, 
which can be subdivided into (based on their position): 

6 center side pieces 
24 edge side pieces and 
24 corner side pieces 

Each 25 (outer layers) or 16 pieces (inner layers), which are on the same
plane, form a unity (in the following called "layer") and can be moved together.
By 90° or 180° turns of these layers, you can mix up the Cube or solve it.
The Professor Cube consists of the following 15 layers:
 6 outer layers: 

 9 middle layers: 

The middle layers can, based on their positions, be subdivided into: 

 3 central middle layers: 

 6 outer middle layers: 

Cube solving (part 1) 
