Introduction to Protein Mass Spectrometry, Second Edition provides a comprehensive overview of this increasingly important, yet complex, analytical technique. This book enables readers to understand how determinations about protein identity from mass spectrometric data are made. Coverage begins with the technical basics, including preparations, instruments, and spectrometric analysis of peptides and proteins, before exploring applied use in biological applications, bioinformatics, database, and software resources. This new edition is fully updated to include the latest developments in the field and will feature new content covering recent progress in the areas where there have been the most exciting advances. These include PNNL’s multilevel-PCB-based SLIM realization, SLIM-Agilent QQQ field trials; employment of SLIM-IMS-cryo-IR combination in molecular structure determination; proximity-labelling mass spectrometry, and applications in neuroscience.