- required
- Bill Buxton. (2007). Sketching user experiences: getting the design right and the right design. Elsevier/Morgan Kaufmann, Chapters 9-14, (ncsu)
- Klein, L. (2013). Diagrams, sketches, wireframes and prototypes. Chapter 8 in UX for lean startups: Faster, smarter user experience research and design. " O'Reilly Media, Inc.". (ncsu)
- optional
- Bill Buxton. (2011). Sketching user experiences: the workbook. Elsevier/Morgan Kaufmann, Section 1. (ncsu)
- Landay, J., & Myers, B. (2001). Sketching interfaces: Toward more human interface design. Computer, 34(3), 56-64. (ncsu)