Rare Book Monthly

Articles - May - 2004 Issue

Ken Leach Reflects On Over<br>35 Years Of Bookselling

Two of the many catalogues Ken Leach has published  plus an entire auction of material he sold in 1984.

Two of the many catalogues Ken Leach has published plus an entire auction of material he sold in 1984.


Selling is the other part of the equation, but this came surprisingly fast to Leach. He began running lists of books for sale in A.B. Bookman’s Weekly, then a major vehicle for book sales (the venerable publication finally ceased printing a few years ago, victim to the internet). Meanwhile, his mailing list for the catalogues began to grow, and these catalogues proved very successful for selling books. In his first year, sales were $16,000. The second was $40,000, and by the third year, Leach rang up $100,000 in sales.

Along the way Leach met Richard Mills, an antiques dealer from Exeter, New Hampshire, and probably the most influential person in his career. “He was the most knowledgeable man I ever met,” Leach says of his friend. He learned much from Mills. One day Mills came back with a library of 18th century works he had purchased in Boston and Leach put out one of his most successful catalogues using Mills’ purchase. Sadly, Mills died while only in his 50s.

While Ken Leach’s catalogues have sold all kinds of primarily American books over the years, he has had a few special collections. One was of early transportation broadsides, which he sold to the American Antiquarian Society. He has a particular interest in broadsides from 1800-1830. “They used to advertise everything that way,” he points out. They are not as uncommon as one might think as merchants would post these flyers all over the place. Perhaps the most notable variety of these broadsides is the slave sale announcements as they so starkly display the terrible cruelty of this practice.

Another unusual collection that Leach sold, this time at auction, was of pre-1900 dust jackets. Leach had put together a substantial collection, with the earliest dating back to 1849. He says that there are a couple that predated this but they were more wrappers than real dust jackets. He still buys these when he can find them, but says that he can no longer find the really early ones.

Leach did not come by the business because of any particular personal involvement with books. He noted that when he was starting out, “I never read the books I bought. I just put a price on them and sold them.” Nor was he ever much of a collector. Ken Leach has only one personal collection, and it is a most unusual one. He collects odd volumes. Specifically, they are odd volumes printed in the U.S. before 1860 and in top condition. Odd volumes are single volumes from a set of two or more and they are not often collected until the set can be completed. In 1983, Leach brought in $17,000 on a sale of odd volumes in their original boards. “It’s amazing,” he comments. Today, Leach has 1,100 of these odd volumes in his personal collection. “There’s a million dollars up there if I can find the other volumes.”

Rare Book Monthly

  • 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.
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  • 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.
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    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.

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