The phrase "circular about" is correct and usable in written English.
It is typically used to indicate that information is being distributed or communicated in a circular or circular-like manner. Example sentence: "The office sent out a circular about the new company policies."
Mr Sokoloff admits that there is something rather circular about it.
The police were heavily criticized for that plan, and they amended a circular about their plans to say that they would increase patrols.
In the absence of cosmic meaning, only "terrestrial" meaning remains — and, he writes, there's "something circular about arguing that the purpose of humanity's existence is that individual humans should help one another".
Shi Tao, a Chinese journalist, had used his Yahoo account to reveal a Chinese government circular about steps the Chinese media should take to underplay dissident activities around the 15th anniversary of the Tiananmen massacre.
Mont-Saint-Michel is almost circular (about 3,000 feet [900 metres] in circumference) and consists of a granite outcrop rising sharply (to 256 feet [78 metres]) out of Mont-Saint-Michel Mont-Saint-Michel Mont-Saint-Michel Bay
In December 2008, the Shanghai Stock Exchange (SSE) issued the Circular about Disclosing Social Responsibility Reports and Internal Control Reportsaluation Reports for Listed Companies in 2008.
The Winneshiek Shale is confined to a circular basin about 5.6 km in diameter in the Decorah area.
We have become so used to drinking, eating, buying and downloading ourselves into a state of milky infant satiation that we have started to see self-restraint as something worth writing home (on Facebook, Twitter, email circulars) about.
The hospital management also tries to send circulars about key issues to all relevant departments.
The circular economy is about more than recycling and managing landfill.
Deadmau5 has big, circular ears - about 13" (33.02 cm) in diameter.
