The House of Lords is one of the two houses of the Parliament of the United Kingdom, the other being the House of Commons. It plays a crucial role in reviewing and revising legislation proposed by the House of Commons. Members of the House of Lords, known as Lords, are not elected; they are appointed, inherit their position, or hold ecclesiastical titles. The House of Lords consists of three main types of members: Life Peers, who are appointed for their lifetime; Bishops, who represent the Church of England; and Hereditary Peers, who inherit their titles. This house contributes to the legislative process by providing expertise and scrutiny.