Photographer and writer Allan Sekula constructs narratives that define land and its political, social, and economic demarcations. He has described "Geography Lesson: Canadian Notes" as a conjectural comparison of imaginary and material geographies in the advanced capitalist world. In the book, which is based on a 1986 exhibition, he examines the iconography found in images of a landscape altered by mining, of bank architecture and its messages of cultural stability, and of the land as a source of economic wealth as it appears on Canadian money. The seventy-six photographs form a narrative sequence augmented by captions and by the text, which is written in the subjective voice of a single investigator and storyteller. The photographs link two sites: the Inco mine and smelter in Sudbury and the Bank of Canada in Ottawa. The deep roots of their existence — the creation and distribution of wealth — are far more intimately connected than appearances would suggest. Canadian bills bear images of industry that draw resources from the land, contributing to the myth of national independence and self-determination. Issues of national identity and independence acquire a heightened poignancy in light of Sekula´s underlying subject, the relationship between Canada´s resource-based economy and U.S. capital. In essays following Sekula´s text, Gary Dufour discusses Canadian Notes as an examination of social and economic discourses that shape perceptions of the land, and John O´Brian discusses the dynamics of a resource-based economy, relations between Canada and the United States, and photography´s ability to regulate appearances and therefore to control reality.