Penguin Random House UK chair Gail Rebuck has joined the board of the Guardian Media Group as non-executive director.
The move adds to Rebuck's portfolio of broader activities, which include serving as a Labour peer in the House of Lords and chairing the Cheltenham Literature Festival and the Quick Reads charity.
Announcing the step, the GMG described Rebuck as "one of the most respected figures in British publishing".
Wikipedia founder Jimmy Wales has also joined the board.
The news comes in the same week that the Guardian announced it needed to make cost cuts of 20% to stem losses and was set on "a growing and far deeper set of relationships with our audience" resulting in "a reimagining of our journalism, a sustainable business model and a newly-focused digital organisation that reflects our independence and our mission.”