Public Trust by Paul Ramírez Jonas is a collaborative artwork in the public space. The project seeks to examine the value we grant to our words through the promises we make to each other and to ourselves. During two weeks at Museo Jumex, Public Trust asked the museum’s visitors to make a promise which was recorded in a drawing. This promise was published on a large marquee placed in the museum’s plaza alongside the pledges made by politicians, scientists, economists and weather forecasters, which were procured from the daily news headlines.