can you mention any of his works?
He composed music for the films - Star Wars, Jaws, Close Encounters of the Third Kind, Superman ,  the first two 'Jurassic Park' films, Schindler's List, and the first three 'Harry Potter' films.
John Williams
In 2005 the American Film Institute selected Williams's score to 1977's "Star Wars" as the greatest film score of all time. The Library of Congress also entered the "Star Wars" soundtrack into the National Recording Registry for being "culturally, historically, or aesthetically significant".

Williams has composed for many critically acclaimed and popular movies, including the "Star Wars" saga, "Jaws", "Close Encounters of the Third Kind", "Superman", "E.T. the Extra-Terrestrial", "Home Alone", the "Indiana Jones" films, the first two "Jurassic Park" films, "Schindler's List", and the first three "Harry Potter" films. Williams has also composed numerous classical concertos and other works for orchestral ensembles and solo instruments. He served as the Boston Pops' principal conductor from 1980 to 1993 and is its laureate conductor. He has been associated with director Steven Spielberg since 1974, composing music for all but five of his feature films. Other works by Williams include the
how much did raiders of the lost ark cost to make Principal photography began in June 1980 on a $20million budget. what kind of a work is this? It is a 1981 American action-adventure film who are the main characters? Indiana Jones, René Belloq, Colonel Dietrich, Arnold Toht, Sallah. what is the storyline? Indiana Jones, a globe-trotting archaeologist, vying with Nazi forces in 1936, to recover the long-lost Ark of the Covenant. Teaming up with his former lover Marion Ravenwood, Jones races to stop rival archaeologist Dr. René Belloq from guiding the Nazis to the Ark and its power. who did the soundtrack? John Williams
wiki:1198176
John Williams [SEP] Introduction
John Towner Williams (born February 8, 1932) is an American composer, conductor, pianist and trombonist. Regarded by many as the greatest film composer of all time, he has composed some of the most popular, recognizable, and critically acclaimed film scores in cinematic history in a career spanning over six decades. Williams has won 25 Grammy Awards, seven British Academy Film Awards, five Academy Awards, and four Golden Globe Awards. With 52 Academy Award nominations, he is the second most-nominated individual, after Walt Disney. In 2005 the American Film Institute selected Williams's score to 1977's "Star Wars" as the greatest film score of all time.