Mīharo Wonder at the National Library of New Zealand runs until October. Alexander Turnbull Library Chief Librarian Chris Szekely says the collection holds items “too many millions to count”. Alone, there are 5 million photographs and 140,000 drawings, paintings and prints. Plus many delightful oddities - this week I marvelled at buttons created by French prisoners on St Helena two centuries ago. Superb work has been done providing access to the collections online, yet exhibitions provide the physical frisson of carefully selected, positioned and explained objects in space. Online a search on ‘buttons’ brings up a boggling 3374 items. Welcome then is