The main aim of this fourth volume is to complement the first three volumes published in 2004 and 2012 by adding advanced methodologies and perspectives. Chapters guide readers through new techniques into the study of platelets and megakaryocytes, including new imaging approaches, new methods for platelet production in vitro, and systems biology approaches. Written in the highly successful Methods in Molecular Biology series format, methods chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and vital tips on troubleshooting or avoiding known pitfalls. Authoritative and up-to-date, Platelets and Megakaryocytes: Volume 4, Additional Protocols and Perspectives adds a wealth of new expertise for the labs of scientists working in this key biological area of study.