Jones Day Latham & Watkins Quintet of firms advise as Publicis Omnicom merger creates advertising giant By Joanne Harris 29 July 2013 13:29 17 December 2015 11:46 Sign in or register to continue reading. It's FREE Sign in Email Password Keep me logged in Forgot your password? Not registered? It's FREE! Register now Register with The Lawyer Name Email Cancel reply Threaded commenting powered by interconnect/it code.