Every year, CS50 hosts a Hackathon in which students stay up all night finishing their final projects for the semester. Hundreds of students come in with their laptops and spend the night coding, eating (CS50 provides late night pizza, 2AM Chinese food, and breakfast pancakes), staying caffinated, and socializing. This poster tells the story of the Hackathon night, from top left to bottom right. And because "This is CS50," there are 50 red circular shapes depicted in the design.

At the end of each semester, CS50 organizes the CS50 Fair, an epic display of its 700+ students' final projects. The Fair attracts thousands of people from around campus and creates a carnival-like, fun atmosphere with music, popcorn, and balloons.

A poster for the Puzzle Day that CS50 hosts, sponsored by Facebook. The design is based on that of the previous year's Fair.

A poster for the "Chinese Symphonic Masterpieces" concert organized by Harvard students. Featured in this concert is the world premiere of the "Journey to the West," composed by Oliver Caplan, and the poster draws from this famous Chinese tale by depicting the Monkey King traveling from Eastern to Western landscape. This journey westward reflects the concert's own progression as it starts with an Asian song and ends with an European masterpiece.

The Harvard Japan Society organized a Harvard for Japan week in response to the earthquakes and tsunami of March 11, 2011. The red bracelets in the poster were sold to raise money and awareness for the disasters.

The poster is for the second week and depicts the "Harvard for Japan" t-shirts, which were sold in addition to the bracelets that week.

A poster for the 2012's version of the CS50 Fair that continues the balloon motif and points to the theatricality of the production.

One of the older designs for the CS50 Fair.