This website has been created to guide law students competing in the 26th Annual Annual Willem C. Vis Moot Competition in Vienna, Austria. The competition tests students' knowledge and advocacy of international commercial arbitration law (known as the "procedural law" of the moot problem) and international commercial sales (or contract) law (known as the "substantive law" of the moot problem). For help researching the procedural and substantive law involved in the moot problem, look to the tabs on the left of the screen.