FROM MERLIN ARCHIVE DO NOT RESEND TO LIBRARY Boston, MA., 04/07/08, Architect Renzo Piano, right, and Anne Hawley, the Norma Jean Calderwood Director of the Isabella Stewart Gardner Museum, enter the main open space. Piano is designing renovation/expansions at the Isabella Stewart Gardner Museum and the Fogg Art Museum. Piano is coming to town to visit with folks at the Gardner Museum. Piano spoke to reporter about how people enter the space from the dark and then into the bright coutyard. Section: Arts, Reporter: Edgers Suzanne Kreiter/Globe staff / library tag 04252009 business