General Problem-Solving Algorithm -- Helpful Hints --Sample Compounds -- Spectroscopic Methods -- Sample Handling -- Units in Spectroscopy -- Useful Equations -- Predominant Features in the Spectra -- Recognition of the Molecular Ion -- Intensities of Remarkable Heteroatom Isotope Peaks -- Molecular Formula Compilation Table -- Levels of Unsaturation (LU) --Diagnostic Fragment Ions in the Mass Spectrum --Diagnostic IR Absorptions Frequencies -- Wavelength to Wave Number Conversion Table -- Comparison of Information from [superscript 1]H NMR and [superscript 13]C NMR -- Approximate Chemical Shifts in [superscript 1]H NMR -- Integration of [superscript 1]H NMR -- Approximate Chemical Shifts in [superscript 13]C NMR -- UV Absorptions of Chromophores