As part of the Indiebound programme, Nielsen BookScan has generously agreed to supply a weekly independent Top 20 bestsellers report.

1 Mansfield and Me: A Graphic Memoir
by Sarah Laing
Victoria University Press $35.00
9781776560691
2 Only Two for Everest: How a First Ascent by Riddiford and Cotter Shaped Climbing History by Lyn McKinnon
Otago University Press $49.95
9781927322406
3 Scrumptious
by Chelsea Winter
Random House $50.00
9780143770107
4 A Constitution for Aotearoa New Zealand
Geoffrey Palmer & Andrew Butler
Victoria University Press $25.00
9781776560868
5 The 78-Storey Treehouse
by Andy Griffiths & Terry Denton
Pan Macmillan  $17.99
9781743535004
6 The Rescue Pilot
by John Funnell
Random House $40.00
9781775538493
7 Magnus Chase and the Hammer of Thor
by Rick Riordan
Penguin Books  $26.00
9780141342559
8 The Pigeon Tunnel: Stories from My Life
John Le Carre
Viking Penguin Books $38.00
9780241976876
9 Commonwealth
Ann Patchett
Bloomsbury Publishing $32.99
9781408880395
10 I Know This to be True
PQ Blackwell $49.99
9780473361341
11 Born to Run
Bruce Springsteen
Simon & Schuster $49.99
9781471157790
12 Nutshell
by Ian McEwan
Jonathan Cape $38.00
9781911214335
13 The Diamond Horse
Stacy Gregg
HarperCollins $24.99
9780008124397
14 Homo Deus: A Brief History of Tomorrow
Yuval Noah Harari
Harvill Secker Random House  $40.00
9781910701881
15 Eileen
Ottessa Moshfegh
Vintage $26.00
9781784701468
16 Edmonds Cookery Book Goodman Fielder Hodder Moa Hachette $34.99
9781869713423
17 Hera Lindsay Bird
by Hera Lindsay Bird
Victoria University Press $25.00
9781776560714
18 Dr Libbys Womens Wellness Wisdom: What Every Woman Needs to Know
by Dr. Libby Weaver
Little Green Frog Publishing  $39.95
9780473360887
19 Like Nobody's Watching
by L. J. Ritchie
Escalator Press $24.99
9780994137203
20 The Good People
by Hannah Kent
Picador Australia Pan Macmillan $37.99
9781743534908