Book prices at auction rose sharply in 2007 following a couple years of very slow growth. The median price rose almost 15% last year, from $423 to $486. This follows a rise of less than 1% the year before. Volatility in exchange rates, as well a rebound in European markets that had been soft the prior two years, played a major role in the sharp increase. The average increase of 6% per year over the past three years may give a better picture of trends in the book market than does one sharply higher year following two flat ones.
These prices are based on U.S. currency, but the collapsing dollar wreaked havoc on an orderly marketplace. While prices rose 15% in terms of dollars, they rose 13% in British pounds and only 3% in Euros. Such was the collapse of the American dollar.
Book prices at auctions held in America for American buyers (using U.S. dollars) rose by a more modest 9%. However, for European buyers computing their purchases in Euros, prices in America actually declined by 3%. In European auctions, prices for Europeans rebounded sharply, increasing 16% after several soft years. However, for American buyers using declining dollars, prices in Europe shot up by almost 30%, making that marketplace prohibitive for Americans. The phenomenon in books was similar to that for Americans purchasing fuel for their cars and homes – a substantial increase in underlying prices coupled with a collapsing dollar resulted in huge increases in costs.
Prices in the British market were the least volatile. The increase was a modest 1% for those buying in the local currency, while the British pound had only a relatively modest gain versus the U.S. dollar in 2007 after experiencing a sharp gain the year before.
The average price at auction took an even steeper incline than the median, rising 36% from $2,557 to $3,476 in 2007. However, average prices are easily skewed by a few very large sales and therefore are not as indicative of market conditions. Last year's $21 million sale of a copy of the Magna Carta was sufficient by itself to add $140 to the average sale price of all items.
While prices shot up, other sales numbers remained largely unchanged. In 2007, 75% of the lots offered were sold, 25% unsold, unchanged from 2006. Once again, 49% of items sold went for more than the high estimate, while 27% went for less than the low estimate, one percent less than last year. However, when unsold items are factored in, it shows that 45% of the items offered either sold for less than the low estimate or not at all, versus 37% of all items offered selling over the maximum. These figures too were unchanged from 2006.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 156: Cornelis de Jode, Americae pars Borealis, double-page engraved map of North America, Antwerp, 1593.
Swann, Dec. 9: Lot 206: John and Alexander Walker, Map of the United States, London and Liverpool, 1827.
Swann, Dec. 9: Lot 223: Abraham Ortelius, Typus Orbis Terrarum, hand-colored double-page engraved world map, Antwerp, 1575.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 233: Aaron Arrowsmith, Chart of the World, oversize engraved map on 8 sheets, London, 1790 (circa 1800).
Swann, Dec. 9: Lot 239: Fielding Lucas, A General Atlas, 81 engraved maps and diagrams, Baltimore, 1823.
Swann, Dec. 9: Lot 240: Anthony Finley, A New American Atlas, 15 maps engraved by james hamilton young on 14 double-page sheets, Philadelphia, 1826.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 263: John Bachmann, Panorama of the Seat of War, portfolio of 4 double-page chromolithographed panoramic maps, New York, 1861.
Swann, Dec. 9: Lot 265: Sebastian Münster, Cosmographei, Basel: Sebastian Henricpetri, 1558.
Swann, Dec. 9: Lot 271: Abraham Ortelius, Epitome Theatri Orteliani, Antwerp: Johann Baptist Vrients, 1601.
Swann Maps & Atlases, Natural History & Color Plate Books December 9, 2025
Swann, Dec. 9: Lot 283: Joris van Spilbergen, Speculum Orientalis Occidentalisque Indiae, Leiden: Nicolaus van Geelkercken for Jodocus Hondius, 1619.
Swann, Dec. 9: Lot 285: Levinus Hulsius, Achtzehender Theil der Newen Welt, 14 engraved folding maps, Frankfurt: Johann Frederick Weiss, 1623.
Swann, Dec. 9: Lot 341: John James Audubon, Carolina Parrot, Plate 26, London, 1827.
Sotheby’s Book Week December 9-17, 2025
Sotheby’s, Dec. 11: Darwin and Wallace. On the Tendency of Species to form Varieties..., [in:] Journal of the Proceedings of the Linnean Society, Vol. III, No. 9., 1858, Darwin announces the theory of natural selection. £100,000 to £150,000.
Sotheby’s, Dec. 11: J.K. Rowling. Harry Potter and the Philosopher's Stone, 1997, first edition, hardback issue, inscribed by the author pre-publication. £100,000 to £150,000.
Sotheby’s, Dec. 11: Wolfgang Amadeus Mozart. Autograph sketchleaf including a probable draft for the E flat Piano Quartet, K.493, 1786. £150,000 to £200,000.
Sotheby’s, Dec. 12: Hooke, Robert. Micrographia: or some Physiological Descriptions of Minute Bodies made by Magnifying Glasses. London: James Allestry for the Royal Society, 1667. $12,000 to $15,000.
Sotheby’s, Dec. 12: Chappuzeau, Samuel. The history of jewels, first edition in English. London: T.N. for Hobart Kemp, 1671. $12,000 to $18,000.
Sotheby’s, Dec. 12: Sowerby, James. Exotic Mineralogy, containing his most realistic mineral depictions, London: Benjamin Meredith, 1811, Arding and Merrett, 1817. $5,000 to $7,000.