Call for Papers Special Issue of ARTIFACT: The Interaction of Practice and Theory. While theory and practice interact in design artifacts implicitly, this special issue of Artifact seeks to understand that interaction explicitly, by exploring collaborative articles between academics and professionals. We encourage submissions that include, but are not limited to the following themes. 1. Academic/professional reflections that compare perspectives on analysis versus making as it applies to a digital artifact. 2. Conversations in which academics and professionals ask and answer each other's questions concerning a particular design artifact. 3. Individuals who "have a foot in theory and one in practice" or who have experience moving from theory to practice, reflect on the opportunities and constraints in each. 4. Graduate students, professionals, and/or academics, who have collaborated on a student project, describe that process. Please follow Artifact's guidelines for authors http://www.tandf.co.uk/journals/authors/saifauth.pdf. Submit manuscripts by DECEMBER 15, 2006 to <susan.hagan@alumni.cmu.edu>. Susan Hagan and Erik Stolterman