In addition to the essential theoretical background and fundamental principles, this unique reference presents a detailed, step-by-step methodology for interpreting even electron mass spectrometry results. Specific chapters are devoted to: proteomics; biomolecule spectral interpretation of small molecules; biomolecule spectral interpretation of biological macromolecules; and MALDI-TOF-Postsource Decay (PSD). Chapters feature detailed examples, questions, and problems to help readers solidify their understanding of the concepts and techniques.