most important work (of a writer, artist, etc.); representative work; masterpiece; magnum opus; major work
この映画は監督の代表作だ。
This film is the director's masterpiece.
代表作として広く知られている。
It is widely known as a representative work.
彼の代表作はどれも深いテーマを持つ。
All of his masterpieces deal with profound themes.