A consultant in Port O'Connor is a professional who provides professional or expert advice in a particular area such as management, accountancy, the environment, entertainment, technology, law (tax law in particular), human resources, marketing, emergency management, food production, medicine, finance, life management, economics, public affairs, communication, engineering, sound system design, graphic design, or waste management. He is usually an expert or a professional in a specific field and has a wide knowledge of the subject matter. He usually works for a consultancy firm or is self-employed, and engages with multiple and changing clients.