324 Chapter 10 International usability testing Understanding cultural differences You could spend a lifetime learning about other cultures--even one other culture--and it's a wonderful undertaking. But when time is of the essence and you want to jump in and learn what you can to prepare for international usability testing, help is available in the form of books and articles that address international and cultural dimensions of people and how they use products. I 've organized some excellent resources to give you the background information to begin your persona creation and to start planning for testing. The book's companion website has a list of resources on international usability testing for a wide variety of products. By far, the largest number of these is about the cultural influences on website design, since websites are the most obvious focus for design adaptation and international usability testing. Books to learn more