According to the 2011 ACRL Visual Literacy Competency Standards for Higher Education: "Visual literacy is a set of abilities that enables an individual to effectively find, interpret, evaluate, use, and create images and visual media. Visual literacy enables a learner to understand and analyze the contextual, cultural, ethical, aesthetic, intellectual, and technical components involved in the production and use of visual materials. A visually literate individual is both a critical consumer of visual media and a competent contributor to a body of shared knowledge and culture."
In Mahzarin Banaji and Anthony Greenwald's Blindspot: Hidden Biases of Good People (2013) they suggest simply changing your screensavers to an image that works against stereotypes can help reset your biases. Consider a personal bias about other people you may want to revise. Challenge this bias by selecting an image to counteract it as your new screensaver.