"Student audiences are my favourite audiences," he said, "because they're normally open, more willing to listen - most of them - and if they're enjoying literature at school ... then they're coming because they want to come and not because they're being forced to.
"They're sometimes better than university students in ... being open to new ideas and new ways."
Other guests include Scottish-Nigerian poet and fiction writer Jackie Kay, British young adult fiction writer Patrick Ness, Australian writer and comedian Olivia Phommavanh and Wendt's niece, Samoan fantasy writer Lani Wendt Young.
Festival director Anne O'Brien said this Schools Programme was the biggest yet and numbers had to be capped because interest was so great.
• For more information visit: www.writersfestival.co.nz.