Ed Kalnins is a person, just like you or me! He's a man who has done lots of things in his life, but he's most well-known for being a professor. That's someone who teaches others about different subjects, like math, science, or history.
Ed Kalnins specifically teaches about math, which is about numbers and how they work together. He's really good at it, and lots of people have learned from him over the years. He's also written some books to help people understand math better.
Besides teaching and writing, Ed Kalnins is also interested in other things. He likes playing sports, listening to music, and spending time with his family and friends.
Overall, Ed Kalnins is just a regular person who's really good at math and wants to teach others about it. It's important to have people like him who can help us learn new things and grow our minds!