Abstract is the yearly publication of student work from Columbia University's GSAPP. The catalog is produced through the office of Dean Mark Wigley. The archive of student work, containing documentation of projects selected by faculty at the conclusion of each semester, is utilized in the making of Abstract. The content for Abstract 2011/2012 is available online at abstract20112012-dot-com, and as an app in the iTunes store. The item available for purchase is a case containing no content.