The 2014 Field Workshop of IGCP 591, to be held jointly with ISSS, ISOS and ISCS, will behosted at the Yunnan University in Kunming (SW China), August 12-21, 2014. Its formal theme is “Geologic and biotic events and their relationships during the Early to Middle Paleozoic”, however, the workshop will not be limited to these topics. The Workshop will includetwodaysof scientific sessions, an one-day trip to theChengjiang Biota site (mid-conference field excursion), and a 6-day post-conference field excursion to investigate the Lower Paleozoic successions and fossils in northeastern Yunnan Province (western South China paleoplate) and western YunnanProvince (Indo-China and Sibumasu paleoplates). The meeting is being organized jointly by the Nanjing Institute of Geology and Palaeontology (Chinese Academy of Sciences) and the Yunnan Key Laboratory forPalaeobiology (Yunnan University), with financialsupport from the State Key Laboratory of Palaeobiology and Stratigraphy (LPS), the National Natural Science Foundation of China (NSFC) and IGCP 591.