Books mark the progress of Man since they were invented. Through them we are able to gain insight into the minds of our predecessors better than through any other medium. They describe how the delicate interplay between practice and ideal, which is better known as evolution, has brought forward the societies in which we now live. A book marks the synthesis of knowledge in a different way from individual papers. A certain maturity and volume of understanding and knowledge is necessary before the material is suitable for a book. The timing of the cognitive and analytical synt- sis represented...