Some people can not apprehend the aim of the introduction. They claim it is not worth writing something you intend to describe later on in your paper. Yes, it is an open secret that a work of fiction does not have any introduction telling what is going to happen in the main part of the book. But an essay is not fiction.
It is a detailed study of some facts or ideas that should be explored. Since all major parts of the essay are built on the thesis, it is indispensable for the researcher to acquaint the reader with the thesis and reveal its significance and its relevance and meaning.
The introduction should be grabbing and impressive to induce the reader to read further on. If the introduction is dull and mediocre the reader will not proceed.
Present your introduction in a clear, precise and interesting way. Convince your reader that your essay is worth reading.
Steps in writing the essay: Essay introduction.