The 10th TRACE conference (Tree Rings in Archaeology, Climatology and Ecology) was organized by the Institut National de la Recherche Agronomique (INRA) - Centre d'Orléans Unité Amélioration, Génétique et Physiologie Forestières, on May 11th – 14th 2011 in the “Muséum des Sciences Naturelles” in Orléans, France. TRACE is an initiative of the ‘Association of Tree-Ring Research’ (ATR) and provides a scientific platform for young scientists, simultaneously maintaining a high scientific level. More than 100 scientists working on tree-ring related topics participated conference, coming from Austria, Belgium, Canada, Czech Republic, France, Germany, Iran, Italy, Latvia, the Netherlands, Poland, Portugal, Romania, Russia, Spain and Switzerland, among which 65 student [...] This volume of TRACE Proceedings contains 16 short papers and gives an overview of the wide spectrum of fields in tree-ring research.