How To Train Your Dragon author Cressida Cowell gives her writing tips
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Cressida Cowell: "Summer is a great time to read!"

9 July 2017 Last updated at 14:27 BST

Martin's behind the scenes at CBBC's Summer Social and caught up with author Cressida Cowell.

The How To Train Your Dragon author gave Martin some great writing and reading tips ready for the summer!