One of the many charts now available on AE provides detailed pricing information by auction house.
By Michael Stillman
The value of rare and collectible books inched up ever so slightly last year, auction records compiled by the Americana Exchange have revealed. The median price for books and related ephemera at auction rose from $420 to $423 last year. While the good news for sellers and those who own collections is that prices managed to go up, the bad news is they rose more slowly than inflation. The rise in the AEI (Americana Exchange Index) was but 0.7%. The rise in the CPI (Consumer Price Index) was 2.5%.
Similar to the CPI, the AEI slipped by 1% from 2005. Median book prices rose by 1.7%, from $413 to $420, last year, vs. 0.7% this year. Likewise, the CPI was 1% higher last year, 3.5% vs. 2.5% this year.
These results reflect pricing at the mid to higher end of the book spectrum. Inexpensive books are rarely sold at auction. Therefore these results do not necessarily carry over to the lower end of the book market. The ever-increasing number of low to mid priced books offered through online selling sites and eBay may well have placed added pressure on prices at this end of the market. Auction sales only show trends for mid to upper level books. However, it is possible that increased competition at the mid levels where books sold online and at auction intersect has had an impact on sales at auction. While there were occasional aberrant years, the dominant trend throughout the twentieth century was for the price of collectible books to grow at several times the rate of the CPI. Book prices trailing the CPI, as they have the past two years, is unusual.
The average price for books sold at auction was $2,557 for 2006, a drop of almost $200. However, this is not considered to reflect trends in pricing as accurately as median prices since averages can readily be skewed by the number of very valuable items coming up for sale in any given year. Average prices often swing wildly from year to year while median prices move at more gradual, consistent rates.
Sell through at auction also inched up from the prior year in 2006. For the past year, 75% of the book lots offered for sale were purchased, vs. 74% in 2005. Lots sold for more than the high estimate also increased. In 2006, 49% sold above the high estimate vs. 28% below the low estimate. For 2005, the ratio was 48%-29%. However, these numbers can be somewhat misleading since they are based only on lots sold, and many auction houses simply won't sell lots that fall too far below minimum estimates. When lots that did not sell are combined with those sold below the minimum estimate, we find 45% of the lots offered failed to bring the minimum estimate, while 37% brought in more than the maximum estimate.
Heritage, Dec. 15: Jerry Thomas. How to Mix Drinks, or the Bon-Vivant's Companion, Containing Clear and Reliable Directions for Mixing All the Beverages Used in the United States…
Rare Book Hub is now mobile-friendly!
Bonhams, Dec. 8-18: Autograph Letter Signed ("Martinus Luther") to His Friend the Theologian Gerhard Wiskamp ("Gerardo Xantho Lampadario"). $100,000 - $150,000.
Bonhams, Dec. 8-18: An Exceptionally Fine Copy of Austenís Emma: A Novel in Three Volumes. $40,000 - $60,000.
Bonhams, Dec. 8-18: Presentation Copy of Ernest Hemmingwayís A Farewell to Arms for Edward Titus of the Black Mankin Press. $30,000 - $50,000.
Bonhams, Dec. 8-18: Autograph Manuscript Signed Integrally for "The Songs of Pooh," by Alan Alexander. $30,000 - $50,000.
Bonhams, Dec. 8-18: Autograph Manuscript of "Three Fragments from Gˆtterd‰mmerung" by Richard Wagner. $30,000 - $50,000.
Bonhams, Dec. 8-18: Original Preliminary Artwork, for the First Edition of Snow Crash. $20,000 - $30,000.
Bonhams, Dec. 8-18: Autograph Letter Signed ("T.R. Malthus") to Economist Nassau Senior on Wealth, Labor and Adam Smith. $20,000 - $30,000.
Bonhams, Dec. 8-18: History of the Peloponnesian War by Thucydides Finely Bound by Michael Wilcox. $20,000 - $30,000.
Bonhams, Dec. 8-18: First Edition of Lewis and Clark: Travels to the Source of the Missouri River and Across the American Continent to the Pacific Ocean. $8,000 - $12,000.
Bonhams, Dec. 8-18: Original Artwork for the First Edition of Neal Stephenson's Groundbreaking Novel Snow Crash. $100,000 - $150,000.
Bonhams, Dec. 8-18: A Complete Set Signed Deluxe Editions of King's The Dark Tower Series by Stephen King. $8,000 - $12,000.
Bonhams, Dec. 8-18: Autograph Letter Signed ("John Adams") to James Le Ray de Chaumont During the Crucial Years of the Revolutionary War. $8,000 - $12,000.
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.
![<b>Heritage, Dec. 15:</b> John Donne. <i>Poems, By J. D. With Elegies on the Author's Death.</i> London: M[iles]. F[lesher]. for John Marriot, 1633.](https://ae-files.s3.amazonaws.com/AdvertisementPhotos/8caddaea-4c1f-47a7-9455-62f53af36e3f.jpg "<b>Heritage, Dec. 15:</b> John Donne. <i>Poems, By J. D. With Elegies on the Author's Death.</i> London: M[iles]. F[lesher]. for John Marriot, 1633.")
![<b>Sotheby’s, Dec. 11:</b> Darwin and Wallace. On the Tendency of Species to form Varieties..., [in:] <i>Journal of the Proceedings of the Linnean Society,</i> Vol. III, No. 9., 1858, Darwin announces the theory of natural selection. £100,000 to £150,000.](https://ae-files.s3.amazonaws.com/AdvertisementPhotos/00d5fd41-2542-4a80-b119-4886d4b9925f.png "<b>Sotheby’s, Dec. 11:</b> Darwin and Wallace. On the Tendency of Species to form Varieties..., [in:] <i>Journal of the Proceedings of the Linnean Society,</i> Vol. III, No. 9., 1858, Darwin announces the theory of natural selection. £100,000 to £150,000.")
