Wun, TiffanyOehlberg, Lora A.Sturdee, MiriamCarpendale, Sheelagh2018-09-102018-09-102018-08-31Wun, T., Oehlberg, L. A., Sturdee, M., & Carpendale, S. (2018). You say Potato, I say Po-Data: Physical Template Tools for Visualization Authoring (Tech.). Calgary, AB: Department of Computer Science, University of Calgary.http://hdl.handle.net/1880/107714Providing data visualization authoring tools for the general public remains an ongoing challenge. Inspired by block-printing, we explore how visualization stamps as a physical visualization authoring tool could leverage both visual freedom and ease of repetition. We conducted a workshop with two groups---visualization experts and non-experts---where participants authored visualizations on paper using hand-carved stamps made from potatoes and sponges. The low-fidelity medium freed participants to test new stamp patterns and accept mistakes. From the created visualizations, we observed several unique traits and uses of block-printing tools for visualization authoring, including: modularity of patterns, annotation guides, creation of multiple patterns from one stamp, and various techniques to apply data onto paper. We discuss the issues around expressivity and effectiveness of block-printed stamps in visualization authoring, and identify implications for the design and assembly of primitives in potential visualization stamp kits, as well as applications for future use in non-digital environments.enUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.Information VisualizationVisualization Authoring ToolsTangible ToolsBlock-PrintingPhysical Template ToolsPotatotechnical report10.11575/PRISM/32892