It's indisputable that the growth trend in OOH over the past 12 years has been more than favourable, and according to WARC's figures, successful brands already allocate an average of 13% o
New York (May 4, 2022) - GroupM, WPP's media investment group, announced the results of the Sightline Global Digital Out-of-Home (DOOH) survey on current perceptions of digital OOH advertising.