The release of One World was supported with various kind of advertisements. These series of one column ads are original in their approach and ran in several leading music magazines, mostly on the same day (22 April 1978).
Left to right:
Ad #1 was published in Melody Maker, #2 also Melody Maker.
Ad #3 is pulled from Sounds while #4 was found in the New Musical Express.

The text goes
"Here's just a couple of tracks to woo yah... there's six more on 'One World' that'll really wow ya!

A bloody great album from John Martyn
ILPS 9492 Produced by Chris Blackwell"