Single Transferable Vote (STV) is an electoral system used for electing representatives in multi-member constituencies. Voters rank candidates in order of preference, allowing for a more proportional representation of diverse political views. When votes are counted, candidates who reach a certain quota are elected, and excess votes are transferred to other candidates based on voters' preferences. STV is designed to minimize wasted votes and ensure that more voters' preferences are reflected in the final outcome. It is commonly used in various elections, including those for local councils and the European Parliament, promoting a fairer and more inclusive democratic process.