Ms Mainland has worked on some of Scotland's biggest events
The Edinburgh Festival Fringe has appointed a new chief executive.
Kath Mainland will take up the post after four years as administrative director of the city's International Book Festival.
Fringe director Jon Morgan resigned at the end of last year's festival after a string of errors which saw its online booking system collapse.
More than 100 people from across the world applied for the new post of chief executive.
A spokesman for the Fringe said: "Kath will take up the post following four years at the Edinburgh International Book Festival as administrative director during which time the festival enjoyed a steady growth.
"Ticket sales increased to 80% of capacity and programming grew to just short of 750 events cementing the festival's status as the biggest book festival in the world."
Ms Mainland, originally from Orkney, began her career at the Fringe as an administrative assistant in 1991.
She went on to work on many of Scotland's biggest festivals and events, including the MTV European Music Awards and the Champions League Final.
As chief executive she will head up a team including three new senior managers to be appointed in early March.
Ms Mainland said: "I'm absolutely thrilled, delighted and honoured to be joining the Fringe as chief executive officer, heading up the team responsible for running the world's greatest arts festival.
"I started my career at the Fringe 17 years ago and have always been a passionate supporter of the festival.
"The Fringe is a hugely important platform for performers from all over the world, a major driver for tourism and economic development and an unrivalled cultural opportunity for the people of Edinburgh."
Baroness Elizabeth Smith, chairwoman of the Board of Directors of the Fringe, said: "Kath's wide range of festivals and events experience in addition to her knowledge of the importance of the Fringe to Edinburgh and the wider Scottish economy sees her ideally placed to take the festival to the next level."