At about 600 pages, the AP Stylebook is widely used as a writing and editing reference in newsrooms, classrooms and corporate offices worldwide. Updated regularly since its initial publication in 1953 ...

Additionally, AP's myriad customers that use its content follow AP style. It's all part of an ongoing series of actions by the White House that has targeted legacy media.

The White House blocked an Associated Press reporter from attending an event in the Oval Office after demanding the news agency alter its style on the Gulf of Mexico, which President Donald Trump ...