In connection with the reconstruction of the 5th Street-Independence Hall Station on the Market-Frankford Line, and as part of SEPTA’s Art in Transit program, artist Tom Judd was selected to create a permanent installation for the station. Titled Portal to Discovery, Judd’s mural on the eastbound and westbound platforms presents figures who contributed to the founding of the United States as well as those who fought for “life, liberty, and the pursuit of happiness” for all. The catalogue features contributions by William R. Valerio, Marsha Moss, and David Seltzer, and includes descriptions of the mural process through Judd's explanation of each development phase: Presentation, Fabrication, and Installation.