Dune is a futuristic world created by Frank Herbert. From it there several books, movies, and video games have been created by various people.

In the world of Dune takes place far in the future around 10,000 CE. There are many advancements in technology, but the most important thing in the galaxy is a spice called malange. This spice is nessesary for folding space which is the only effective method of space travel. This spice only exists on the planet Arrakis, making it a very dangerous place because everyone is always fighting for control of it.

There are six books to the core Dune series. These books were all written by Frank Herbert and they include:

Core Books
Dune Messiah
Children of Dune
God Emperor of Dune
Heretics of Dune
Chapterhouse Dune

Two trilogies have been written after Frank Herbert's death. They are written by Brian Herbert and Kevin J. Anderson including:

Prelude Trilogy
House Atreides
House Harkonnen
House Corrino

Legends Trilogy
The Butlerian Jihad
The Machine Crusade
The Battle of Corrin

In addition to the books a movie and two miniseries have been made called:

Dune Miniseries
Children of Dune Miniseries

Also, six video games have been made with a Dune theme including:

Dune Games
Dune 2
Dune: Battle for Arrakis
Dune 2000
Emperor Battle for Dune
Frank Herbert's Dune

Various other forms of media have been made about Dune including companion books.

My Dune page.
dunenovels.com - Dune's official site.