Welmoed Out graduated in Biology at the Utrecht University in 2002. Between 2003 and 2008 she worked as a Ph.D. student in the archaeological research project 'The Malta Harvest: From Hardinxveld to Noordhoorn - from forager to farmer'. The results of the archaeobotanical research are presented in this thesis, and in several other publications. After the Ph.D. research she had a temporary position as a Marie Curie Research Fellow Archaeobotany at the University of Sheffield.