Jim Walker is founder and executive director of Big Car Collaborative. He recently served as lead artist on Spark Monument Circle, a partnership with the City of Indianapolis funded by the National Endowment for the Arts to reimagine Monument Circle with a new physical design and public programming. He also leads Big Car’s work to use socially engaged art and placemaking as tools for revitalizing the Garfield Park neighborhood near downtown Indianapolis. Walker — who received his MFA from Warren Wilson College in Asheville, N.C. — has worked as an artist, journalist, teacher, and designer. He’s organizer of TEDxIndianapolis and a longtime member of the Indianapolis cluster of CEOs for Cities.