Order info


Prices of Sigma books vary from series to series. Prices are in New Zealand dollars and include GST. Refer to each book's individual web page for its recommended retail price and bulk discount prices available to schools. 

Sigma pays the courier costs to anywhere in New Zealand on bulk orders (over 20 books).

Bulk Price

Available to schools only with a school order number – $4 discount per book on RRP.
Purchases of 20 or more books required (mixed titles OK).
Once a school has purchased over 20 books in a given calendar year, any further books purchased that year (replacements, new students) will be provided to the school at this bulk discount price regardless of numbers.

Please note this will be adjusted on your account order for orders that total over 20 items,  whilst the current website bulk price discount only applies to individual product totals over 20.

[Book distributors please phone Sigma on 0800274 460 to discuss opening an account and our wholesale margins.]

Postage and Packaging

FREE on orders over 20 books (mixed titles OK).
P & P charged on smaller orders (price depends on distance from Tauranga - phone us for specific costs).


All orders are sent by Courier (Toll) except for PO boxes and small orders to rural addresses.
Allow 2 to 4 working days for delivery.
Packing slips are sent with each order – please check pocket on outside of cartons.
Invoices are emailed to schools when order is dispatched.


Sigma extends credit accounts to all New Zealand schools and educational institutions.
Payment is due on the 20th of the month following delivery.
Invoices are emailed to schools when order is dispatched.

Returns Policy

Books may be returned in saleable condition up to 6 weeks after purchase.

Books may be swapped for other titles up to 3 months after purchase. 

Damaged books will not be accepted; please pack returns tightly to avoid damage in transit. 
Accounts will be adjusted and a statement issued when books are returned or swapped.
To avoid confusion, please wait for an adjusted statement before paying.