Mr Cull and Dunedin City Council City of Literature director Nicky Page are representing Dunedin at the Unesco Creative Cities Network annual meeting, which concludes on Friday.
More than 350 delegates from 160 cities around the world have descended on Poland for the gathering, to be held in the cities of Krakow and Katowice.
The event’s theme of "Creative Crossroads" highlighted the innovation that occurred when people, institutions, cities, and nations joined forces to solve problems in a creative way, organisers said.
The event would include plenary sessions, best-practice exchanges, networking, workshops and study visits in the fields of film, music, literature, media arts, design, gastronomy, crafts and folk art.
Mr Cull said he had been invited to speak at three sessions during the week, while Ms Page’s activities would include sharing examples of "best practice" work being delivered in Dunedin.
One example was the Little Landers Literature partnership with the Highlanders, which aimed to encourage a love of reading in primary school children.
She would also present new project ideas for collaboration between Dunedin and other Cities of Literature, explore new international residency options for Dunedin writers and discuss plans for the Dunedin Unesco City of Literature Short Play Festival to be held, in partnership with the University of Otago, next year.
Mr Cull said the trip would help identify and advance a range of economic opportunities and community benefits.
The creative industries already represented a "significant portion" of Dunedin’s export efforts, and collaborations cemented at events such as the gathering in Poland helped open doors for the city’s arts practitioners, he said.
Dunedin was designated a Unesco Creative City of Literature in 2014.
