Yvan Pailler defended his PhD in 2004 at the University of Western Brittany (UBO, Brest) on the theme of the emergence of Neolithic in Brittany by interrogating especially polished stone objects. From 2005 to 2007, he completed a first post-doctorate at the Department of Archaeology at National Museums Scotland where he worked on the appearance of the Neolithic in Great Britain and Ireland and its links with the continent and is interested in parallel production of polished stone blades socially valued. In 2007, he began a second post-doc (CNRS) of three years as part of the ANR Jade 1 program directed by P. Pétrequin. Since 2010, he has been recruited as scientific officer for archaeological operations at the French National Institute for Rescue Archaeology (Inrap), as Neolithic specialist. He is also a member of the Trajectoires laboratory, UMR 8215 (co-supervised Paris 1 / CNRS). He has directed many archaeological operations (excavations, diagnoses and surveys); he is also involved in several research programs (PCR Bronze in Brittany, ANR Jade 2, etc.). Hosted since 2013 in LETG laboratory (UMR 6554) at the European Institute for Marine Studies (IUEM, Plouzané), he develops interdisciplinary projects around human / environmental relations and teaches Prehistory at UBO.