Charles Trevail is the CEO of Interbrand, a global consultancy with offices in Boston, London and Shanghai and a team of over 200. Throughout his career, Charles has advised well-known brands including British Airways, BMW, McDonalds and Telefonica on rethinking the role of customers. In this in-depth interview, he explains his passion for infusing the customer’s perspective into every part of a business, discusses why building strong relationships with clients, coworkers and customers is fundamental to his career; and reveals that his most important ambition is – above all – to stay married.