BASIC PRINCIPLES AT THE MOLECULAR LEVEL 1.) Structure and Properties 2.) Concepts of Stereochemistry PROPERTIES AT THE LEVEL OF MOLECULAR SETS 3.) Time Scales, Conformational Changes 4.) Tautomerism 5.) Absolute Configuration 6.) Enantiomeric Composition GENERAL CHARACTERISTICS OF SELECTIVE REACTIONS 7.) Main Types of Selectivities 8.) Classification of Selectivities 9.) Stereospecific and Stereoselective Reactions 10.) Applications of Stereoselective Reactions 11.) Stoichiometric Methods 12.) Catalytic Methods