Ideas of Quantum Chemistry P4 shows how quantum mechanics is applied to chemistry to give it a theoretical foundation. The structure of the book (a TREE-form) emphasizes the logical relationships between various topics, facts and methods. It shows the reader which parts of the text are needed for understanding specific aspects of the subject matter. Interspersed throughout the text are short biographies of key scientists and their contributions to the development of the field. | XXX Introduction To begin with It is suggested that the reader start with the following. A study of the TREE diagram. Read the table of contents and compare it with the TREE. Address the question of what is your goal . why you would like to read such a book Choose a personal path on the TREE the suggested itineraries may be of some Become acquainted with the organization of any chapter. CHAPTER ORGANIZATION Once an itinerary is chosen the student will cover different chapters. All the chapters have the same structure and are divided into sections. Where are we In this section readers are made aware of their current position on the TREE diagram. In this way they know the relationship of the current chapter to other chapters what chapters they are expected to have covered already and the remaining chapters for which the current chapter provides a preparation. The current position shows whether they should invest time and effort in studying the current chapter. Without the TREE diagram it may appear after tedious study of the current chapter that this chapter was of little value and benefit to the reader. An example Here the reader is confronted with a practical problem that the current chapter addresses. Only after posing a clear-cut problem without an evident solution will the student see the purpose of the chapter and how the material presented sheds light on the stated problem. What is it all about In this section the essence of the chapter is presented and a detailed exposition follows. This may be an occasion for the students to review the relationship of the current chapter to their chosen path. In surveying the subject matter of a given chapter it is also appropriate to review student expectations. Those who have chosen a special path will find only some of the material pertinent to their needs. Such recommended paths are also provided within each chapter. 23This choice may still be tentative and may become clear in the course of reading this book.