London

The publisher of JK Rowling's Harry Potter books is to auction his copy of 'The Tales of Beedle the Bard' at Sotheby’s next month.

Two unusual works by Giovanni Antonio Canal, better known as Canaletto (1697-1786), will be on display in a Mayfair Gallery this week prior to their sale at auction later in the month in Genoa, Italy.

Art historians should embrace the trade and understand the value of the art market, argues a programme director at Christie’s Education.

Sir Edwin Landseer’s famous painting of a Highlands stag, Monarch of the Glen, will be offered at Christie’s next month with an estimate in the region of £10m.

Over 400 works from David Bowie’s collection have now gone on view at Sotheby’s in advance of the three-part auction in London on November 10-11.

An antique’s appearance in an exhibition in a gallery or museum can help boost auction value in several ways. One factor after the show is adding to the provenance: this item was so important it was selected for a landmark display on the artist or designer.

A single-owner sale of pictures and books assembled by the late Howard Radclyffe, a former director of London dealers Quaritch, will be offered at Roseberys on November 19.

The venerable Oriental Ceramic Society are holding an exhibition of Asian ceramics at Sotheby’s which opens later this week.

The 26th Winter Art & Antiques Fair, Olympia opens for its preview on October 31 and visitors can get into the Halloween spirit by going for exhibitors’ spooky offerings.

Well-known general valuers Rachel Doerr and Sean McIlroy launch a new UK valuations firm this month.

A new group for book collectors and enthusiasts is set to launch at the University of London this Friday.

It is not always the most obviously valuable coins that make the most at auction. Or even the ones with the highest original value. A humble Irish 20p dating from the relatively recent year of 1985 is a good case in point.

Art Market Minds, the organisers of the annual Art Business Conference, are partnering with law firm K&L Gates to launch a seminar next month focusing on risk management in the art market.

A near total sell-out greeted Sotheby’s sale of Indian miniatures from the Khosrovani-Diba collection offered as part of London’s Indian and Islamic art series.

The next generation of Asian art experts will be the focus of a Lyon & Turnbull panel discussion in partnership with ATG as part of the ‘Asian Art in London’ festival in November.

The excitement around the new polymer fivers, which were launched by the Bank of England last month, helped boost interest in new and old £5 notes for philatelic and numismatic specialists Spink.

London dealer and BADA chairman Michael Cohen has found and sold his personal “Holy Grail”, in the shape of a Qianlong tureen, cover and stand.

More than 50 portraits of rabbis will be put on display and offered for sale in south west London.

Coalport porcelain, like that produced at Derby, is renowned for its quality and decoration, drawing inspiration from work produced at the celebrated Sèvres factory.

The boxing trunks worn by Muhammad Ali in a famous but controversial fight against Henry Cooper will be offered at a Graham Budd auction next month, estimated at £70,000-90,000.