His style is unique, with a signature image always bearing his personal touch.
The use of a signature graphic image, he adds, "is more of a European way.
His signature image is an isolated individual looking at the sea.
It has become the Koppitz's signature image, and was also his best-seller.
The play begins with a Squat signature image.
He has also reproduced this signature image in sculpture, watercolour and prints.
It has a signature image, emblazoned on glossy cards, and a motto.
We tried to "sign" them by running them through the laser printer again and printing a couple of signature images in the correct place.
As a result, two of the artist's signature images - flags and numbers - are absent from this exhibition.
The following are (with links to the author's web site) examples of signature images from his career.