Happy Birthday Maisy! Beloved Maisy, Lucy Cousin's wonderful mouse, turns 20 this year... For more on Lucy & Maisy check out this interview here.

Read about picture book creator Lucy Cousins' visit to the studio and creation of a collaborative installation.

Illustrator Lucy Cousins created one of the world's most loved children's characters, Maisy Mouse, in 1990. Since then Maisy books have sold 27 million copies and been translated into 27 languages. Here she explains how Maisy came into being.

'Tiny, you can watch a few more inches of Maisy, and then I'm putting David Attenborough on.' The Doctor is seriously obsessed with David Attenborough. He invites me onto the couch to watch David Attenborough with him. But David Attenborough vs Maisy (who is Tiny's favourite super mouse). Who will win? David might wrangle wild animals. But Maisy is best friends with a crocodile.. If they duked it out, who would win? I'm putting my shrapnel on David. I think he's super.

Lovely poster for nursery (love everything from Lucy Cousins)

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