Mrs Stead said Ms Gilbert was an inspiration to all readers and writers.
"This is her first book, which she's written in her 70s. And she's already writing her second one. She's a great example of what you can do if you keep your brain active through reading and writing."
Mrs Stead said even in an age of pervasive technology, books still have a place in people's lives.
"Regularly reading keeps people mentally alert, and has positive effects on memory, on stress levels, our aptitude for imagination and compassion."
Book Night is hosted by Book Discussion Scheme, an organisation that provides books to more than 1100 book groups .
If you plan to take part in Book Night, register at http://www.bds.org.nz/booknight, and you could win prizes including a $150 book voucher.