The Bourne Supremacy is the second Jason Bourne novel

Novel

A novel is a book of long narrative in literary prose. The genre has historical roots both in the fields of the medieval and early modern romance and in the tradition of the novella. The latter supplied the present generic term in the late 18th century....

 written by Robert Ludlum

Robert Ludlum

Robert Ludlum was an American author of 23 thriller novels. The number of his books in print is estimated between 290–500 million copies. They have been published in 33 languages and 40 countries. Ludlum also published books under the pseudonyms Jonathan Ryder and Michael Shepherd.-Life and...

, first published in 1986. It was the sequel to Ludlum's bestseller The Bourne Identity (1980) and precedes Ludlum's final Bourne novel, The Bourne Ultimatum (1990).

The Bourne Supremacy was adapted into a film

The Bourne Supremacy (film)

The Bourne Supremacy is a 2004 American spy film very loosely based on Robert Ludlum's novel of the same name. The film was directed by Paul Greengrass, written by Tony Gilroy and Brian Helgeland, and produced by Frank Marshall and Pat Crowley. Universal Pictures released the film to theaters in...

 of the same name in 2004 starring Matt Damon

Matt Damon

Matthew Paige "Matt" Damon is an American actor, screenwriter, and philanthropist whose career was launched following the success of the film Good Will Hunting , from a screenplay he co-wrote with friend Ben Affleck...

, although the film has a completely different plot from the novel.
In the first book, The Bourne Identity, Jason Bourne

Jason Bourne

Jason Charles Bourne is a fictional character and the main protagonist in the novels of Robert Ludlum and subsequent film adaptations. He first appeared in the novel The Bourne Identity...

 suffered amnesia

Amnesia

Amnesia is a condition in which one's memory is lost. The causes of amnesia have traditionally been divided into categories. Memory appears to be stored in several parts of the limbic system of the brain, and any condition that interferes with the function of this system can cause amnesia...

.