Now Chapman's aim is to see more children engaging in te reo and sign language, alongside English.
"They are just so receptive to this stuff.
"There's lots of textbooks and programmes but not a lot you can have in a toy box or on the coffee table which are easy to grab."
She said the Māori community had been "super supportive" and she had worked with Anah Hiini, from Kōtihi Reo Consultants, to make sure she was getting things right.
"People can buy the book through my website from August 25 and I will also be hosting a stall as part of Te Wiki o te Reo Māori."