This volume provides a collection of techniques and approaches for the study of ERK signaling. It begins with a historical perspective of genetic and molecular discoveries, followed by chapters covering specific topics in a broad range of experimental systems, including in vitro assays of EGFR and ERK activities; proteomic and genome-wide analyses of ERK signaling targets; cell biological, genetic, quantitative and imaging approaches in cells and model organisms; and integrated mathematical modeling of the ERK pathway. Written in the highly successful series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory prools, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and thorough, will aid and stimulate further advances in the vibrant field of ERK signaling.