The workshop Anatomy of a Long-Lived Oceanic Arc: Geology, Geophysics and Geochemistry of the Izu-Bonin-Mariana Arc System and Analogs aims to: (1) review the results of extensive drilling by four recent IODP expeditions; (2) review other (non-drilling) approaches used to study the Izu-Bonin-Mariana (IBM) system; (3) present mantle and ocean floor drilling objectives in other systems and synthesize these with IBM results and goals; (4) make comparisons with arc and ophiolite field analogs around the globe; and (5) identify avenues for future collaborative research. The workshop will involve synthesizing results in the IBM arc system and analogous modern systems and outcrop analogs, a mid-week field trip to examine IBM rocks, and targeted discussion of thematic and geographic areas ideal for collaborative research, synthesis papers, and new research proposals. A number of travel support grants will be available for participants from U.S. institutions and organizations. Support for a limited number of international participants will need to be provided by individuals or IODP member countries. In addition to scientists within the IODP community and early career researchers, we also encourage researchers, including field geologists and modelers, who do not normally participate in IODP projects to apply. Workshop participation is open to U.S. and international researchers and the deadline to apply is May 1, 2019.