Spectroscopy Letters provides vital coverage of all types of spectroscopy across all the disciplines where they are used—including novel work in fundamental spectroscopy, applications, diagnostics and instrumentation. The audience is intended to be all practicing spectroscopists across all scientific (and some engineering) disciplines, including: physics, chemistry, biology, instrumentation science, and pharmaceutical science. The journal publishes communications about original experimental and theoretical work on such methods as: -Magnetic resonance spectroscopy (nuclear and electron spin)- Mass Spectroscopy (atomic and molecular)- Optical spectrophotometry (atomic and molecular in the UV, Visible and infrared)- Molecular spectroscopy (fluorescence and phosphorescence in the UV, Visible and infrared)- Optical Atomic spectroscopy (flames, furnaces and plasmas)- X-ray spectroscopy- Microwave spectroscopy- Laser spectroscopy. Manuscripts may be submitted as full papers, or as short papers of a preliminary nature (letters). Letters may include instrumental developments that may be useful for other spectroscopists.