Graphical representations play an important role in both science and mathematics education. Graphs can summarize very complex information or relationships very effectively. Although graphs are explicitly taught in mathematics classrooms as an end in themselves, many subject areas such as science or social studies utilize graphs to represent and interpret relationships. So being able to interpret or construct graphical representations is a crucial skill for every student whether or not they want to pursue science- or mathematics-related careers. However, many researchers detected that many students lack graphing skills. This digest explains research findings and contains a brief annotated bibliography of Internet sites on how to improve graphing skills. (AA)