Here is the typical structure for a type 1 essay question for the IELTS exam along with a model answer. Remember that when describing a graph it is important to use the IOK structure. Start your writing by describing what the graph shows or contrasts, then begin the second paragraph by looking at the overall trend (at this point you may also want to talk about what the different bars or represent if your describing a chart or graph), then in the final paragraph spend some time describing key points in the graph, please remember that these points should support the overall trend of the chart or graph