| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Mobile Usability: How Nokia Changed the Face of the Mobile Phone | 978-0-07-138514-5 (0-07-138514-2) | 2003 | Christian Lindholm |
| Product Concept Design: A Review of the Conceptual Design of Products in Industry | 978-1-84628-125-9 (1-84628-125-3) | 2005 | Roope Takala |