Hello there little one! So, the St. Petersburg International Economic Forum is an event where lots of grown-ups who are important in the business world go to talk about ways to make their countries better, specifically when it comes to money.
It's like a big, big party where people talk about how they can make problems go away and how they can create more opportunities for people to earn money, start businesses, and make their lives better.
You know how, when you want to build a big tower of blocks or put together a puzzle, you have to think carefully and plan ahead? That's what these grown-ups do, except they're thinking about how to make things better for lots of people at once - like, how to make a whole country's economy grow!
And just like when you build a tall tower with your blocks, it can be hard work to get everything just right. But when all the grown-ups work together and share their ideas, they can make some really cool things happen that can help lots of people.
So that's what the St. Petersburg International Economic Forum is all about - grown-ups coming together to share their ideas for making the world a better, richer place for everybody.