Wireless- network (Wi Fi) located in the trees of the mayor parks in the city (sponsored by EPM) to download virtual copies of literary works for free that are available in the EPM library, telling people that is not necessary to cut down a tree to make a book.

By doing this we achieve 81.540 loggins in the network and 12.687 onlinebooks were read.

In addition, in social network the impact was huge.

We created a Facebook Fan page, Letter Tree.

We created the Twitter hashtag #LetterTree with 1.687 mentions.

People checked in the FouSquare 1.987 times

EPM as the residential public utilities company of Medellín, wants to sensitize the community to take care of natural resources, in this case the trees -due to the supply of public utilities depend of these-, and encourage the habit of reading in the city, because in Colombia, specially in Antioquia, we have one of the lower levels of reading per year per capita in Latin America.

Idea: Wireless network (Wi Fi) located in the trees of the mayor parks in the city to download virtual copies of literary works for free that are available in the EPM library.