There is nothing quite as exciting for a parent as hearing their baby say his or her first words.

But, what if you could start teaching your child to read even before he or she was able to talk?

NBC 10 News medical reporter Cherie Bank has the story of twins who are reading before the age of two.

For most 2½-year-old children, fun means playing with toys.

But Bella Knowles and her twin sister Aurora are having fun learning to read. These girls are reading words that most children can't recognize until they are at least 5 years old.

Their mother, Miki, credits a series of "Your Baby Can Read" tapes that she has been playing for her girls since they were four months old.

"I was utterly amazed. It was one of those things that, until your child is doing it, it was hard to believe," Miki Knowles said.

The tapes are the brainchild of infant learning expert Dr. Bob Titzer. He created the interactive videos for his children to replace what he called mindless TV shows for kids. He scoffs at critics who say babies aren't ready to learn to read.

"I think we have an anti-intellectual society that views learning as negative and the parents who have done this look at learning as fun. Babies actually love to learn," Titzer said.

Titzer said early reading stimulates brain development and may provide a better foundation for future learning.

But many teachers will tell you that whether your children learns to read at 2, 4, 6 or 8, it will be hard to tell who learned to read early by the time the children get to middle school.