Roald Dahl
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Who was Roald Dahl and how did he write his books?

15 February 2016 Last updated at 15:37 GMT

Matilda, The BFG, Charlie and the Chocolate Factory - they're some of the most popular children's books ever written.

But how much do you know about their author, Roald Dahl?

It's a hundred years since he was born, so Newsround has taken a look at his life.