The Bike Ride Maps website, from Rannerdale Ltd, specialises in cycle maps and guide books for long-distance bike rides, eg Sustrans routes such as the C2C, Reivers Route, Devon C2C, LEJOG etc, and maps and guides by region or country: Yorkshire, South East England, Scotland, Wales etc.
There are also a selection of international guide books and maps, mostly in Europe (France, Spain, the Danube etc) but also New Zealand!
You can pay by debit or credit card through a Paypal link: you do not have to have a Paypal account.
Postage is added according to the price of your map or guide book. For example, orders up to £7.50 have £1.50 postage, while orders from £7.50 to £15.00 are £1.95 postage. Full postage and other information is here.