Introduction: Structure of Primer ; 1. Symmetry elements, symmetry operations and point groups ; 2. Matrices, multiplication tables and representations ; 3. More on representations: the reduction formula ; 4. Matrices and representations in higer order point groups: degenerate represenations ; 5. Molecular vibrations (non-degenerate modes) ; 6. Vibrational spectroscopy: degenerate vibrations ; 7. Symmetry aspects of chemical bonding ; Appendix I: Answers to exercises ; Appendix II: Character tables for selected point groups ; Appendix III: Bibliography