There are some really good New Zealand road maps on the market that will be useful for you to buy at the planning stage of your holiday, particularly useful if you are travelling in a hired car or campervan rental.
You don't really want to have to spend any of your precious holiday time browsing bookshops looking for a map when you are there and should actually just be relaxing and enjoying yourselves.
Here are two maps that I have personally used and would recommend.

Kiwimaps New Zealand Travellers Road Atlas
All classes of road are indicated from Motorways and state highways to scenic routes, regional roads and 4WD tracks, and on the larger scale regional maps even road names in rural areas are included...
62 pages ...

Kiwimaps New Zealand Compact Travellers Road Atlas
New Zealand Touring and Main City and Town Centre Maps
A superb, easy-to-use road atlas. The principal mapping of the whole country covers 51 pages ...
There are some fantastic road signs around New Zealand and there are a couple of examples on this page. You will see all sorts of more interesting ones, some are really amusing and I wish I had taken more photos of them! Whoever though of putting a cow on wheels :-)
Be sure to keep your eye out for interesting road and other signs while travelling the country.
Return from New Zealand Road Maps to Campervan New Zealand, Car Hire New Zealand, or the Explore New Zealand home page. Also see my pages on NZ Track Maps, NZ Maps and Books, Map of NZ, New Zealand Ferries
Thank you for visiting Explore New Zealand :-) Author Caroline Ord-Hume