Beale, Campaign's deputy editor since 2000, takes over the magazine from next week. Caroline Marshall moves on from the role of editor to become the executive editor with responsibility for extending the Campaign brand into new areas.
At the same time Francesca Newland steps up from news editor to take on the deputy editor position.
The changes come as the magazine prepares to invest in enhanced coverage of media and marketing issues and refresh its appeal to its core audience, the creative advertising community.
Beale said: "This is a fantastic time to be taking over. There are real signs of a return to health in our industry and all the changes we're making are designed to capture and build upon this new-found confidence."
Rufus Olins, the managing director of Haymarket Management Publications, added: "Claire has a terrific depth of journalistic talent and experience and I am delighted she is taking over the reins on the magazine. I am also extremely grateful to Caroline for the very valuable contribution she has made and I look forward to working with her on developing the brand in her new role."
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