Cover art for NSF-ACM report, "Digitally Enhancing America's Community Colleges." Triangles are featured prominently in the design of this report. As a symbol, the triangle represents the letter Delta of the Greek alphabet, the alphabet often appearing in mathematics, the discipline underpinning computing; the Greek letter Delta also represents "change," the emphasis of this report. As interpretive, triangles are also used as "down arrows" (challenges), "up arrows" (opportunities) and "rightward" pointing arrows (going forward; the future). As iconography, the triangle evokes the graphic elements of computer flowcharting. As a three pointed mark, the triangle reflects the three-prong mission of a community college: education for entry into a career; education for transfer to a university; and education for life-long learning.

Credit: ACM.