Modern slavery is a scourge that affects every region of the world. The latest Global Estimates indicate that 50 million people were living in modern slavery in 2021. Of these people, 28 million were in forced labour and 22 million were trapped in forced marriage. Unfortunately, the number of people in modern slavery has risen significantly in the last five years. In 2021, 10 million more people were in modern slavery compared to 2016 global estimates. Reliable information and statistics on forced labour, forced marriage, and human trafficking are critical to promoting awareness and understanding of the problem, and to informing policy responses. It is hoped that the findings presented in the report will encourage further research and data collection efforts focused on the national and local dimensions of all forms of modern slavery.