Method

Art Moves is a free weekly brief on notable sales at Sotheby's, Christie's and Phillips, across fine art and other collectibles: watches, jewelry, cars, design and fashion. It is written for a reader who knows finance and is new to the art market.

• Prices and estimates come from the auction house's own results page or press release wherever possible. When a figure comes from the press instead, the row says so.
• Buyer identity and context come from established art-market press, credited by name.
• Every factual claim links to its source. Articles are summarized, not reproduced.

• Images appear only where the work is in the public domain or openly licensed, and each carries its credit and licence.
• Auction-house photographs are not used. Where no free image exists, the sale runs without one.

• Confirmed means the auction house or a primary document said it.
• Reported means a named outlet said it, and the outlet is credited.

• A buyer is named only when a credible outlet has reported the name, and the report is credited.
• Otherwise the buyer is listed as anonymous. What is on the record about the bidding is described; guesses about private individuals are not printed.

• Each price states whether it is the hammer price or includes the buyer's premium, the fee the house adds on top of the hammer.
• Estimates are published without fees. Where only a fee-inclusive result is available, the comparison with the estimate is flattering to the result, and the row is labelled.
• Other currencies are converted to US dollars at the European Central Bank reference rate for the sale date.

Each Sunday an automated run in Perplexity Computer researches the week's results, adds them to the dataset, checks the numbers, and drafts an issue. A human editor reads, edits and approves every issue before it is published. Code, data and text are kept under version control, so every change is on the record.

The editor works part-time with a commercial art gallery. Art Moves has no advertisers or sponsors and nothing here is investment advice.

Corrections are made in the dataset and noted on the affected issue.