An estimated 53 million people, mostly women, are employed as domestic workers in private households around the world.
While domestic workers are now considered crucial to the smooth running of national economies, as a workforce they remain one of the most vulnerable to exploitation, abuse and modern-day slavery.
Human rights campaigners have catalogued a litany of exploitation faced by domestic workers at the hands of their employers, including forced labour, rape, daily beatings and being forced to work long hours with no breaks.
According to the International Domestic Workers Federation, employers who exploit or underpay their domestic workers make $8bn (£5.1bn) a year in illegal profits.
The vulnerability of domestic workers is rooted in the nature of their work – typically undertaken behind closed doors in private homes far from their own communities – and the lack of legal protection they receive.
Though critical to the functioning of national economies, only 10% of domestic workers have the same basic labour rights as other sectors. A quarter of all domestic workers are not afforded any legal rights at all.