... (unit 2. 13 Style). Many academic subjects also require discussion of statistics (unit 2. 9 Numbers), and graphs and charts (unit 2. 16 Visual Information).In the case of unit 2. 4 Comparison and ... Elements of Writing are the various skills that are needed for most types of academic writing, whether it is a short report, a long essay or a dissertation. Many essays, for instance, begin ... encourage extra traffic. This may be partly true, but the alternatives are equally problematic. Road pricing has many practical difficulties, while people are reluctant to use public transport....