This research aims at contributing to the literature on global sourcing and particularly to the literature on global sourcing development over time. Using case study materials on the home furnishing retailer IKEA, this research constitutes a picture of the sourcing landscape of IKEA from the 1950s onward. The case of IKEA's global sourcing development over time is discussed over three dimensions: sourcing market development (where?), sourcing scope development (what?), and sourcing mode development (how?). The results of the study imply that modelling the linkages between the dimensions and the overarching operational principles of the firm provides a more comprehensive view on how, and why, global sourcing development evolves over time.