SAN FRANCISCO — The city of San Francisco has opened a complaint and launched an investigation into a giant "X" sign that was installed Friday on top of the downtown building formerly known as Twitter ...

As CEO of the consulting company LaPlaca Cohen, Arthur Cohen has overseen the branding of a number of cultural institutions. Often that includes creating logos, and some of those logos involve ...

The city of San Francisco has a problem with the shiny new "X" logo sitting atop the downtown building formerly known as Twitter's headquarters. City officials have filed a complaint and opened an ...