Advertising activity for annual push promotes new 'personal quit plan' tool.
Lewis takes over from Emily James, who is setting up a freelance practice.
Agency also makes appointments from Grey and Ogilvy.
Restructure will create five divisions within the group.
New subscription pack allows Sky Q customers to access Netflix content.
Three-year deal is the first for the Riot Games title.
Research also found that 45% of people have experienced harm online.
Christie relinquishes global duties to take newly created role.
Two creatives at The Gate London have come up with a campaign, taken up by Gay Times, to highlight the scale of mental health issues among LGBTQ+ young people.
Oath chief executive Tim Armstrong will leave the company as early as next month as parent company Verizon restructures the business.
British Airways faces another hit to its brand reputation after revealing a major data breach has exposed its customers' financial information to hackers.
Airline Finnair and the operator of Helsinki airport have created a 13-minute short film to position themselves as the crossroads between East and West.
The FA has unveiled P&G's Head & Shoulders shampoo brand as its first official haircare partner in a deal that will involve England players starring in advertising.
Burberry has put an end to its practice of burning unsold stock in order to protect the premium nature of its brand.
Brand purpose has many benefits, from the ethical to the financial. However, getting that purpose right, and engaging consumers along the way by being authentic, finding the right tone and offering a sense of belonging is vital
A quarter of all digital adspend will go to social networks this year, according to eMarketer, which has dismissed "knee-jerk reactions" to the data controversy surrounding Facebook.
Brands love to share their sense of humour on April Fool's Day and this year was no different, so Campaign picked out some of the best of this year's efforts.
Publicis Media is seeking to bring together its commerce expertise from across the group with the launch of a specialist global practice.
McCann Worldgroup has promoted Sergio Lopez to the newly-created role of chief production officer of its European operation.