No doubt this was easier when painting a member of his professional circle.

It is not just in professional and business circles that personal contacts help people obtain jobs.

"Let's just say that he is not unknown in our professional circles."

In professional circles, he was known as the pioneer of "human factors."

His many activities brought him into the highest social and professional circles.

The model which they developed has become a valued tool of analysis in both academic and professional circles.

Influence is best sought by building networks of contacts in professional circles.

This problem has long been recognized even outside professional circles.

Curiously, both remain relatively unknown here outside of professional circles.

"I will be raising money for Rudy in professional and personal circles," he said.