A number of hangar-type halls used during the year by commercial exhibitors at fairs line a central pedestrian avenue leading upwards to the vast Palau Nacional, the fair's Spanish pavilion.

Because the Industrial section covers all exhibits not contained in the International and Federal and State sections, a wide array of both commercial and non-commercial exhibitors are listed together.

All events are free and there are no commercial exhibitors - so you will only obtain advice, help and support from government-backed organisations.

The show featured the displays of 196 commercial exhibitors and 1,500 exhibits, including a historical exhibit that featured devices used by Benjamin Franklin and the first Morse telegraph instrument.

Also, hundreds of commercial exhibitors sell flowers and items for gardens.

He plans to concentrate on black and white digital prints, though he expects that museums, artists and commercial exhibitors will continue to generate demand for the old-fashioned approach.

The conferences also have become big business with many commercial exhibitors.

Some 300 commercial exhibitors from all over the world will show 20th-century works, art books and video cassettes during the 19th International Art Fair, June 1 to 20.

With no commercial exhibitors, there will be no pressure to buy - just an exhibition and seminar programme presented by experts from government departments and agencies.

Visitors peruse 4,000 product lines from 600 commercial exhibitors, and learn the latest in agricultural research, conservation and the environment, family and nutrition, and gardening and landscape.