Letter: Private art, public domain

IN Jonathan Glancey's excellent and succinct piece about the C R Mackintosh cult ('If it's art it's in fashion', 20 February) one question remains unanswered. Why did this pivotal creative force, long buried in reputation as far as his home city was concerned, suddenly become so popular, his motifs plundered for repro chairs, clocks, mirrors and even mugs and T-shirts?

The answer is that this overnight success occurred in 1978, when the copyright of all Mackintosh design moved to the public domain.

Roland Crisp

London W1