A nanny, childminder, child care provider, governess or a mother's helper is an individual person who provides care for one or more children in a family as a service. Traditionally, nannies were servants in large households and reported directly to the lady of the house. Today, modern nannies, like other domestic workers, may live in or out of the house depending on their circumstances and those of their employers. Professional nannies are usually certified in cardiopulmonary resuscitation, qualified in First Aid, and have a degree or extensive training in child development. There are many employment agencies that specialize in childcare and online services that aid in finding available nannies.A childminder cares for the child in the childminder's home. Depending on the country they live in, government registration may or may not be required.A governess, in contrast to a nanny, concentrates on teaching and training children.A special type of modern nanny is known as a mother's helper. They are hired to assist mothers in the chores of the household as well as care for the children. A mother's helper may live in or out of the house.