G Protein-Coupled Receptors: Emerging Paradigms in Activation, Signaling and Regulation, Part A, Volume 337 in the International Review of Cell and Molecular Biology series, reviews and details current advances in cell and molecular biology. The IRCMB series has a worldwide readership, maintaining a high standard by publishing invited articles on important and timely topics that are authored by prominent cell and molecular biologists. This new release includes comprehensive sections on the classical paradigms of GCPR signaling and regulation, the family of small GTPases: Beyond heterotrimeric G proteins, GPCR endocytosis: Arrestins, arrestin-like proteins, signaling from internalized G Protein-Coupled Receptors, GPCR kinases, and more.