The Ashley Book of Knots
1944 encyclopedia of knots by Clifford W. Ashley
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Through Synthetic fiber
Use as a reference
Due to its scope and wide availability, The Ashley Book of Knots has become a significant reference work in the field of knotting. The numbers Ashley assigned to each knot can be used to unambiguously identify them. This helps to identify knots despite local colloquialisms or identification changes. Citations to Ashley numbers are usually in the form: "The Constrictor Knot (ABOK #1249)", "ABOK #1249", or even simply "#1249" if the context of the reference is clear or already established.
Some knots have more than one Ashley number due to having multiple uses or forms. For example, the main entry for #1249 is in the chapter on binding knots but it is also listed as #176 in a chapter on occupational knot usage.
The Ashley Book of Knots was compiled and first published before the introduction of synthetic fiber ropes, during a time when natural fiber cordage – typically twisted, laid, or braided rope – was most commonly used. The commentary on some knots may fail to address their behavior when tied with modern synthetic fiber or kernmantle style ropes.
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Corrections and additions
In the first edition, three entries have non-integer numbers: 794.5, 1034.5, 2585.5. Also, entry number 2545 contains no knot, reading only "This knot was mislaid".
Ashley suffered a debilitating stroke the year after the book was published. He was not able to produce an erratum nor oversee a corrected edition.
In 1979, at least one knot was added, the Hunter's bend (#1425A).
In 1991, corrections submitted by the International Guild of Knot Tyers were incorporated. The original list of revisions submitted to the publisher is believed to have been lost, but many had been collected from a series of articles in Knotting Matters, the Guild's quarterly publication. Additional errors have been identified since the 1991 corrections.
Cultural references
The Ashley Book of Knots is quoted extensively in the novel The Shipping News (1993) by E. Annie Proulx, with its descriptions and illustrations of various knots providing the chapter headings. In the novel's acknowledgements, Proulx writes that "without the inspiration of Clifford W. Ashley's wonderful 1944 work, The Ashley Book of Knots, which I had the good fortune to find at a yard sale for a quarter, this book would have remained just a thread of an idea."