What is Fairy Tail ?

Fairy Tail (フェアリーテイル Fearī Teiru^?)
is a Japanese manga series by Hiro Mashima. It has been serialized in Weekly Shōnen Magazine since August 23, 2006 where it is still ongoing. The individual chapters are being collected and published in tankōbon volumes by Kodansha, with 26 released as of June 2011. An anime produced by A-1 Pictures and Satelight was released in Japan on October 12, 2009.^[1] The series follows the adventures of the celestial spirit mage Lucy Heartfilia after she joins the Fairy Tail guild and teams up with Natsu Dragneel, who is searching for the dragon Igneel.
The series was originally licensed for an English language release in North America by Del Rey Manga, which began releasing the individual volumes on March 25, 2008 and ended its licensing with the 12th Volume release. The series was taken over by Kodansha USA Publishing who will continue its North American release with the 13th volume due in May 2011.

(copy from Wiki)