In economic classification, commerce, and business administration, services are broadly categorized into three primary sectors: 1. Business Services (services provided to other enterprises, such as consulting, legal counsel, accounting, IT support, and marketing); 2. Consumer Services (services delivered directly to individual end-users, including retail, hospitality, personal care, entertainment, and residential maintenance); and 3. Public or Social Services (services operated or funded largely by governments or non-profits for public welfare, encompassing public education, healthcare, national defense, and public transportation).