The middle of your essay, or the body, is where you present your arguments and evidence. Here, transition words are key to maintaining flow and coherence. They can show the order of your points (e.g., 'next', 'then', 'afterward'), show a cause-and-effect relationship (e.g., 'therefore', 'as a result', 'consequently'), or contrast different points (e.g., 'however', 'in contrast', 'on the other hand').
For example, you might use 'furthermore' or 'in addition' to add more weight to an argument, or 'on the contrary' to introduce a contrasting viewpoint. These words guide the reader through your essay, making your arguments clear and easy to follow.