Barry de Klerk’s Masterclass Certificate: Design for the 21st Century with Don Norman
The Master Class certificate below verifies that Barry de Klerk has participated in the Master Class Design for the 21st Century with Don Norman.
![Barry de Klerk’s Masterclass Certificate: Design for the 21st Century with Don Norman Master Class Certificate](https://assets.interaction-design.org/build/assets/ixdf-lazy-placeholder-D25niUHk.png)
About the Interaction Design Foundation
With 177,749 graduates, the Interaction Design Foundation is the biggest online design school globally. We were founded in 2002. Every member is awarded a Course Certificate (with its own unique permanent URL) once they complete a course with us.