A lobby group is an organization of like-minded individuals or corporations that promote a particular cause or agenda. Lobby groups operate by attempting to influence legislation and public policy through advocacy and persuasion. Synonymous terms for lobby group include interest group, pressure group, advocacy group, and special interest group. While these groups often operate in a legal and transparent manner, there can be negative connotations attached to lobby groups, particularly if their influence is perceived as undue or if they operate in a secretive manner. Regardless of these connotations, lobby groups play an important role in shaping public policy and ensuring that the interests of various groups are represented in the political process.