Weber Shandwick global president Gail Heimann is not only a Cannes veteran but one of the more insightful industry voices when it comes to distilling lessons from the annual creative jamboree. In a post-Cannes conversation with the Holmes Report's Arun Sudhaman, Heimann breaks down her lessons from this year's edition, which include the PR industry's better showing, the colonisation of trust and purpose by ad agencies, the continuing gender imbalance among the creative ranks and whether PR is purely a craft.