The Economist magazine has launched a triple Iberia Plus miles offer that subscribe to the Magazine and digital editions by January 31, 2015.
You would normally get 4,000 miles for one year subscription that is tripled to 12,000 miles during this promotion.
You can access this offer on The Economist website here.
Note that the price of the subscription greatly varies between countries. The price for Canada is C$165 and $160 in the US. The price in Europe and elsewhere is much higher.
I have subscribed for The Economist in the past and always try to have one with me for the long-haul flights. You can spend several hours reading through the magazine.
Just decided to take advantage of this offer and will use an address in Canada for the delivery, as the price to there is only roughly $145 (C$165) that seems to be the cheapest option.
You can purchase 12,000 Avios at 1.2 cents each and get fantastic magazine and its digital edition thrown in as well.