It's not always smooth-sailing luring in speakers though, Cox says. Award-winning broadcaster Julian Wilcox was one of the hardest guests to reach due to his busy schedule.
"We've really tried to put most of our resourcing into making sure we can get the big names we wanted to get this year."
The festival has hosted hundreds of of artists, designers, musicians, and media personalities from around the globe. Spark organisers are celebrating the festival's 15th anniversary this year by focusing on guests such as popular Australian documentary director John Safran, Go Girls actress JJ Fong, and New Idea editor Michelle Coursey.
Spark: http://spark.net.nz/
Video: http://www.youtube.com/watch?v=m1SEfx4XYpk&feature=youtu.be