This up-to-date account of key areas in modern organic spectroscopy de scribes the four major instrumental methods used routinely by organic chemists: ultra-violet/visible, infra-red, nuclear magnetic resonance spectroscopy, and mass spectroscopy. It provides a concise introductio n to the physical background of each, describing how molecules interac t with electromagnetic radiation or how they fragment when excited suf ficiently, and how this information may be applied to the determinatio n of chemical structures. It also includes simple descriptions of inst rumentation and emphasizes modern...