He published The Kennedy Quarterly and advised private collectors and museums across the country.

Advising collectors and estates, however, is one of the functions of Mr. Gibson's art fund.

But Mr. Sutton has also taken the considerably more unorthodox step of advising collectors on their acquisitions.

He has also been quietly advising collectors and occasionally teaming up with dealers to buy and sell paintings.

She advised collectors, dealers and museums, and researched the history of the reproduction of antique glassware in Italy.

The gallery advises private and corporate collectors as well as artists' estates.

In addition, curators are expected to advise collectors in the hope that they will buy art and one day give it to the museums.

He now has a budding business advising collectors on the acquisition of Modernist furniture, rugs, fabrics and lighting.

Although instrumental in advising American collectors, recognition of her art came more slowly in the United States.

"I advise collectors which artists are cutting edge, very promising, yet whose market is not tapped."