Timo Arnall is a designer, filmmaker and photographer who works on the Apple Design Team in California. He started out as a visual effects and compositing supervisor for animators and artists, working on the 1990s short films of his mother, Marjut Rimminen, among others, before moving into interaction design. His films and design projects set out to make new technology visible and understandable. As creative director of the London studio BERG he made design and film work for Google, Intel and Dentsu, and he later co-founded the studios Ottica, working with Google ATAP, and Playdeo, makers of the interactive video game Avo (2019). His documentary Internet Machine (2014) looks inside one of the world's largest data centres. He has a degree in filmmaking and a PhD in interaction design.