This volume provides an overview of modern and emerging methods for production, analysis, and utility of peptide libraries. Chapter focus on methods and techniques for synthesis, genetic expression, hybrid synthesis-expression, examples of modern utility of these libraries, de novo discovery of reactions, hybrid organic-inorganic materials and, emerging tools for the analysis of these libraries by method of genetic selection and next-generation sequencing. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Peptide Libraries: Methods and Protocols seeks to serve both professionals and novices with its well-honed methodologies.