"When I was at primary school, I was fascinated by the holes in the book - where the caterpillar has been eating - and I think the tactile nature of the book probably played a part in its popularity," says Warner.
Much-loved it may be, but the simple story is hardly enough to sustain a full theatre production. It's performed alongside three of Carle's other stories, The Artist Who Painted a Blue Horse, Mr Seahorse and The Very Lonely Firefly.
It makes it a rather big show - there are 75 puppets in total, four puppeteers and two stage assistants.
"I sometimes get asked if I ever get bored doing the show, but how could I when I see the audience with so many grandparents, parents and kids in it," says Warner. "Many of those kids are coming to the theatre for the first time and how wonderful is it to be a part of someone's first theatre experience?"
• The Very Hungry Caterpillar starts a New Zealand tour in Auckland today followed by shows in Christchurch, Dunedin and Invercargill.
Theatre preview
What: The Very Hungry Caterpillar Show
Where & when: Bruce Mason Centre, today - Saturday