This was followed by his first real abstract work in 1959.

He may have been the first person to paint a completely abstract work.

"It is my most abstract work," she said at the time.

But the piece works perfectly well as an entirely abstract work.

What it isn't, perhaps, is an abstract musical work able to stand on its own.

Here he painted the only abstract work of his career.

But even the abstract work included ideas based on nature and farming the land.

This and peer group pressure kept him doing abstract work.

To me, they don't have the impact of her more abstract work.

It is an abstract work of garden sculpture that people can walk through and even live in.