Some adults don't read books and Literacy Aotearoa is hoping to combat that with its Travelling Books initiative.

Over 9000 free books are being handed out nationwide this week and there's only one rule... once you've read the book, pass it on.

Literacy Aotearoa chief executive Bronwyn Yates says some adults live in fear of picking up a book

She says it can be hard for adults to say they're not good at reading or writing, and Travelling Books can help them engage.