This detailed volume explores the latest methods that can be used to probe mRNA decay pathways and identify mRNA-binding protein targets as well as miRNA targets. Subjects include metabolic labelling and RNAseq methods for determining RNA decay rates, approaches for discovering RNA-binding protein targets, bioinformatics, miRNA targets and novel components of the miRNA- directed decay pathway, and recently developed approaches for studying nonsense-mediated mRNA decay, among other areas. Written for the highly popular 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.