Pirates of the Caribbean star, Keira Knightley was diagnosed when she was 6 and she says that: "Dyslexia is like a wall... it's very difficult to see over it."

The actress admits that it is hard work, but says that: "It doesn't mean that you're stupid... it just means that you work in a different way."

  • About one in 10 kids have dyslexia
  • Dyslexia affects part of your brain and can make reading, writing and spelling really difficult.
  • It can be worse for some than others - words can look blurry or jumbled up, or it can be hard to get dates in order.

Other celebrities who, like Keira, haven't let their dyslexia stop them from being successful include: Jamie Oliver, Olympian Steve Redgrave and even the man behind Mickey Mouse, Walt Disney.

So if you suffer  from it courage, it will not stop you from being an important person and if your friend are concerned help them.