This chapter provides an introduction to the book, which addresses the question, what can HCI learn from art? How can the HCI research agenda, be advanced by looking at art research? How can we improve creativity support and the amplification of that important human capability? Interactive art has become a common part of life because of the many ways in which the computer and the Internet have facilitated it. Human–computer interaction is as important to interactive art as mixing the colors of paint are to painting. This book reviews recent work that looks at these issues through art research. In interactive digital art, the artist is concerned with how the artwork behaves, how the audience interacts with it and, ultimately, in participant experience and their degree of engagement.