The Nausicaä of the Valley of the Wind is a manga series.
Originally individual comic books published in Japan, the series has been translated into multiple languages. The English translations have been combined into several editions of graphic novels, some two volumes and some seven volumes.
"In a long-ago war, humankind set off a
devastating ecological disaster.
Thriving industrial societies disappeared.
The earth is slowly submerging beneath
the expanding Sea of Corruption,
an enormous toxic forest that creates
mutant insects and releases a miasma
of poisonous spores..." 
Not only does it include the main events of the film, but it includes lots of extra information that does not feature in the film, but will feature on this site.
- ↑ DE1a pg XX
a See Page Conversions Between Editions to convert Deluxe Edition volume 1 (DE1) to other editions