(CNN)You might think slavery is a thing of the past, but modern slavery is all around us.
There are between 20 million and 36 million enslaved people in the world right now. That's a shocking number, and even more shocking is that it includes 5.5 million children. The fact is, human trafficking has become an organized and highly profitable crime, worth more than $150 billion per year.
Here's how you can help:
The Freedom Project's symbol is a paper plane, representing the path towards freedom, so we're asking you to:
1) Make a paper plane.
2) Write a pledge on the plane -- something you're going to do to help fight modern slavery.
3) Show us your plane and pledge on social media using the hashtag #FlyToFreedom. You can also use the uploader below.
4) Nominate two friends to do the same by tagging them in your social media post.
Share your planes and pledges and the best ones will be featured on CNN and in a special video on CNN International TV.