1 in 5 girls around the world is denied an education by the daily realities of poverty, violence and discrimination.
Gender-based violence and sexual violence are barriers to girls moving beyond primary education.
10 million girls become child brides each year and all too often they are forced out of education.
Plan’s Because I am a Girl campaign aims to reach 4 million girls directly – improving their lives with access to school, skills, livelihoods and protection.
See how girls from around the world are celebrating Malala's Nobel Peace Prize win.
For the last 2 years people all over the world have been raising their hands to put pressure on the UN to make girls' education a priority.
See what happened when 12-year-old Thea - Norway's first child bride - went to her wedding this International Day of the Girl.
The leading cause of death for young women aged 15-19 in developing countries is pregnancy.