This detailed protocol book provides phosphoproteomics techniques currently developed for use in plants, as well as offering a variety of methodologies to analyze different types of plant phosphoproteomic data. Suitable protocols for every stage of the experiment, from protein isolation and phosphopeptides enrichment to large-scale data analysis, have been considered and explored. Written for the highly successful Methods in Molecular Biology series, 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.