As we have said, coherence is achieved when ideas are connected. This means that you need to think about the relationship between the ideas in the different parts of your essay and how to organise them at the planning stage. These ideas can then be developed into an academic argument.
If you do this well, your reader will be able to say at the end, “that was easy to read. I could easily follow the writer’s argument, the flow of ideas was very clear and I never got lost.”