Noted for his prolific output - 10 books a year was normal - he published nearly 500 titles.

Mr. Allen played down his prolific output - a film almost every year.

Despite his prolific output, he has said that writing is difficult for him.

Jeong is said to have painted daily, with a prolific output until his old age.

The group have had a prolific output of releases.

He maintains a prolific output and has no plans to stop acting.

However since 2009 most of his prolific output has been in colour.

He is known for his prolific output and literary lyrics.

Lee has since maintained a prolific output in popular genre writing.

Perhaps another aspect to his painting style and prolific output could have been financial.