Today's expert is religious historian Peter Lineham who's book Sunday Best has just been released looking at the role the church has played in New Zealand as well as the role New Zealand has played in the development of religion here.
It's an account about how our society and culture are intertwined with our religious past.
"Religion sat partly in the private sphere, and gaining an understanding of this ought to unlock explanations for many aspects of society and culture, including music, literacy, cultural memory, class consciousness, family formation and gender identity."