Describes art auction and rare book catalogs for sales from the late sixteenth century to scheduled auctions not yet held. Records include the dates and places of sales, the auction houses, sellers, institutional holdings, and titles of works.

Invaluable (formerly Artfact) is the worlds largest online auction marketplace of fine and decorative arts, antiques, collectibles, and estate sales. Across all three of their sites--invaluable.com, invaluable.co.uk, and auctionzip.com--more than 30 million bidders per year arrive in the virtual salerooms of the worlds premier auction houses. Collectors have unprecedented access to the items they are most passionate about. Invaluables live online bidding platform allows collectors to bid in real-time on auctions held around the world.

Bidders can search and buy from over 160,000 auctions annually with a combined value of over $25 billion. Invaluables best in class price database includes more than 57 million complete auction results totaling more than $204 billion in value, including information on more than 500,000 international artists.

As the worlds leading provider of SaaS technology and marketing services to the $40 billion live auctions market, Invaluable provides auctioneers with marketing and e-commerce solutions including auction listings, online bidding, websites, and auction management software (RFC Systems) reaching over 25,000 estate and art auctioneers around the globe.
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AskART is an online database containing information on over 270,000 artists. From its inception the focus was on American artists--painters, sculptors and illustrators--from the early 16th century through the present. However in January of 2007, the database expanded to include international artists' auction records along with book and periodical references and images. Artist entries include a biography, information about museums that display their work, a bibliography of books and periodicals about the artist, and a superb color image gallery. Over 7,400 museums and dealers are also referenced and can be accessed through a name keyword search, an alphabetically arranged artist index, or by category on a more selective basis (e.g., California Artists, Hudson River School). AskArt also provides directories of museums, dealers, auction houses, and professional organizations, as well as a glossary of art terms.