The idea behind a proposal essay is that the author is attempting to convince the reader to take action, approve a plan or believe that a product or set of ideas is the best way to achieve the given ends. Usually a proposal essay will analyze the need for the proposal in the first place, as well as suggest a solution that will be backed up by data and logical writing. Besides, your job is to convince the reader that the topic is an issue. Ideas for a proposal essay should begin with your personal beliefs. The more passionate you feel about a belief, the more passionate your writing will be.