Corridor is a custom typeface drawn by Tim Ripper for Pentagram's 2021 rebrand of the MIT Alumni Association. It digitises the hand-painted signage of Glenn Silva, whose lettering has lined MIT's Infinite Corridor for nearly three decades. Ripper had first sketched the concept in 2013 while studying type design; the project lay unfinished until a mutual contact passed the beta to Pentagram designer Sachi Chandiramani, who incorporated it into a branding pitch that the Alumni Association approved. Corridor is paired with Neue Haas Grotesk in a nod to the Modernist graphic design tradition associated with Muriel Cooper and Jacqueline Casey at MIT Press and the MIT Media Lab.