Rare Book Monthly

Articles - May - 2005 Issue

Book Valuation Gets a Place at the Table

AE Current Value converts old prices into today's values

AE Current Value converts old prices into today's values


By Bruce McKinney

I've seen the future and can report it's exciting. Well, this isn't exactly Martin Luther King saying "I've seen the promised land" but it is part of the future of book valuation nevertheless and it is easy, fast and thought provoking. This month we introduce automated current pricing in the AED. For those who have wondered how or why a 1923 auction record is relevant to book valuation today I have only one word to say, HELLO.

For every book that makes the front page of the New York Times as "the long lost copy of ...." that is thought to be worth millions there are in fact millions of books that are interesting but whose values are much harder to understand. For all the books that don't make it to the front page of the Times there is now AE's Adjusted Current Valuation.

Wright Howes, the Chicago bookman, successfully created a flexible grading system 51 years ago and applied it to 10,520 titles in the Americana field in his book collector's guide: Howes' USiana. The beauty of his system was that his valuations were relative and so remained useful even as valuations changed. His book could not account for change in relative valuation but such changes became meaningful only over decades.

This month, in the AED, it now becomes possible to search for specific titles and editions and to select records that simply by selecting GET CURRENT ESTIMATE, immediately adjust all selected priced records to current value, and then average them for a composite current valuation, a generally better indicator of value than any single record. Then, if any records seem inappropriately high or low we provide links to each underlying record and the option to delete such records from the group. You can then recalculate composite value a second time.

This is not going to tell you what your book is precisely worth but it is going to give you a reasonable idea of its value. About 80% of all books will fall within 15% of the median prices. For books at both extremes the estimates will be less accurate but nevertheless helpful. Most people want to know if their book is valuable. This will tell you that.

Rare Book Monthly

  • Gros & DelettrezLivres & Manuscrits ArméniensJeudi 12 juin 2025Paris, Francis Gros & DelettrezLivres & Manuscrits ArméniensJeudi 12 juin 2025Paris, Francis
    Gros & Delettrez
    Livres & Manuscrits Arméniens
    Jeudi 12 juin 2025
    Paris, Francis
    Gros & Delettrez
    Livres & Manuscrits Arméniens
    Jeudi 12 juin 2025
    Paris, Francis
    Gros & Delettrez, June 12: BIBLE, Venise 1733, reliure arménienne
    Gros & Delettrez, June 12: CHARAKNOTS, manuscrit XVIIe-XVIIIe siècle
    Gros & Delettrez, June 12: CHARAKNOTS, manuscrit daté 1606, reliure arménienne
    Gros & Delettrez, June 12: CHARAKNOTS, manuscrit début XVIIIe siècle, reliure arménienne
    Gros & Delettrez, June 12: CHARAKNOTS, Amsterdam 1664
    Gros & Delettrez, June 12: CHARAKNOTS, Amsterdam 1702, reliure arménienne
    Gros & Delettrez, June 12: DICTIONNAIRE arménien, manuscrit XVIIe-XVIIIe siècle.
    Gros & Delettrez, June 12: EVANGILE, manuscrit 1735-1737, reliure arménienne
    Gros & Delettrez, June 12: LIVRE DE PRIERES, Grégoire de Narek, manuscrit
    Gros & Delettrez, June 12: GEOGRAPHIE, Ghoukas INDJIDJIAN, Venise 1802-1806
    Gros & Delettrez, June 12: MANUSCRIT THEOLOGIQUE, XVIe-XVIIe siècle
    Gros & Delettrez, June 12: MASHTOTS, manuscrit XVIIIe-XIXe siècle, reliure arménienne
    Gros & Delettrez, June 12: LETTRE ENCYCLIQUE, manuscrit XIXe siècle
    Gros & Delettrez, June 12: NOUVEAU TESTAMENT, Amsterdam 1668, reliure arménienne
  • Rose City Book & Paper FairJune 14-15, 20251000 NE Multnomah, PortlandROSECITYBOOKFAIR.COM Rose City Book & Paper FairJune 14-15, 20251000 NE Multnomah, PortlandROSECITYBOOKFAIR.COM
    Rose City Book & Paper Fair
    June 14-15, 2025
    1000 NE Multnomah, Portland
    ROSECITYBOOKFAIR.COM
    Rose City Book & Paper Fair
    June 14-15, 2025
    1000 NE Multnomah, Portland
    ROSECITYBOOKFAIR.COM
  • Swann, June 12: Lot 3:Thomas McKenney and James Hall, History of the Indian Tribes of North America, 1848-1854. Estimate $3,000 to $4,000. Swann, June 12: Lot 3:Thomas McKenney and James Hall, History of the Indian Tribes of North America, 1848-1854. Estimate $3,000 to $4,000.
    Swann, June 12: Lot 3:
    Thomas McKenney and James Hall, History of the Indian Tribes of North America, 1848-1854. Estimate $3,000 to $4,000.
    Swann, June 12: Lot 3:
    Thomas McKenney and James Hall, History of the Indian Tribes of North America, 1848-1854. Estimate $3,000 to $4,000.
    Swann, June 12: Lot 8:
    Invoice to the Town of Boston for advertising pre-revolutionary content in the Boston Post Boy, manuscript document, Boston, July 1768. Estimate $5,000 to $7,500.
    Swann, June 12: Lot 13:
    Clairac and Nicola, L'Ingenieur de Campagne; or, Field
    Swann, June 12: Lot 81:
    Journals of Major Robert Rogers . . . of the Several Excursions he Made . . . upon the Continent of North America, London, 1765. Estimate $4,000 to $6,000.
    Swann, June 12: Lot 99:
    Photograph albums and papers from the family of W.G. Fargo, photo albums containing 442 photographs, 1865-88. Estimate $3,000 to $4,000.
    Swann, June 12: Lot 112:
    Isaac Leeser, Discourses on the Jewish Religion, 10 volumes, Philadelphia: Sherman & Co., 1866-1868. Estimate $6,000 to $9,000.
    Swann, June 12: Lot 176:
    Frederick Douglass, Narrative of the Life of Frederick Douglass, an American Slave, Boston, 1845. Estimate $4,000 to $6,000.
    Swann, June 12: Lot 190:
    Thomas Hariot, Admiranda narratio fida tamen, de commodis et incolarum ritibus Virginiae, 1590. Estimate $25,000 to $35,000.
    Swann, June 12: Lot 200:
    Correspondence of a regimental cavalry commander in Wyoming and Utah, July 1865 to February 1866. Estimate $4,000 to $6,000.
    Swann, June 12: Lot 226:
    Maturino Gilberti, Vocabulario en lengua de Mechuacan / Aqui comienca el vocabulario en la lengua Castellana y Mechuacana, 1559. Estimate $8,000 to $12,000.
  • Sotheby'sBibliothèque Jacques Dauchez - Autour de Dubuffet
5-19 June
Sotheby'sBibliothèque Jacques Dauchez - Autour de Dubuffet
5-19 June
    Sotheby's
    Bibliothèque Jacques Dauchez - Autour de Dubuffet
    5-19 June
    Sotheby's
    Bibliothèque Jacques Dauchez - Autour de Dubuffet
    5-19 June
    Sotheby’s, June 5-19: Bissière, Roger. Cantique à notre frère soleil de saint François. 1954. 1,000 - 1,500 EUR
    Sotheby’s, June 5-19: Céline, Louis-Ferdinand. La vie & l’œuvre de Philippe Ignace Semmelweis. 1924. Rare édition originale, avec envoi. Joint : La Quinine en thérapeutique, 1925. 4,000 - 6,000 EUR
    Sotheby’s, June 5-19: Céline, Louis-Ferdinand. Mort à crédit. 1936. Édition originale. Bel exemplaire sur Hollande. 2,500 - 3,500 EUR
    Sotheby's
    Bibliothèque Jacques Dauchez - Autour de Dubuffet
    5-19 June
    Sotheby’s, June 5-19: Chillida, Eduardo ─ Emil Cioran. Face aux instants. 1985. Un des 100 exemplaires sur Arches. Eau-forte signée. 600 - 800 EUR
    Sotheby’s, June 5-19: Dubuffet, Jean. Ler dla canpane. L’Art Brut, 1948. Édition originale. 3,000 - 5,000 EUR
    Sotheby’s, June 5-19: Dubuffet, Jean. L'Herne Jean Dubuffet. 1973. Un des 100 exemplaires du tirage de luxe avec une sérigraphie originale en couleurs. 1,000 - 1,500 EUR

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