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The Ashley Book of Knots

The Ashley Book of Knots
ABOK-Cover.jpg
Although Ashley was an esteemed painter, the cover illustration was painted by George Giguere. It shows a sailor displaying a Tom fool's knot.
Author Clifford W. Ashley
Cover artist George Giguere
Subject Knots
Genre Reference work
Publisher Doubleday
Publication date
1944
ISBN

The Ashley Book of Knots is an encyclopedia of knots written and illustrated by the American artist Clifford W. Ashley. First published in 1944, it was the culmination of over 11 years of work. The book contains more than 3800 numbered entries and an estimated 7000 illustrations. The entries include knot instructions, uses, and some histories, categorized by type or function. It remains one of the most important and comprehensive books on knots.

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. The book title is also found abbreviated in the forms: TABOK, TABoK or ABoK.

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.

Ashley suffered a debilitating stroke the year after his magnum opus was published. He was not able to produce an erratum or oversee a corrected edition. Corrections submitted by the International Guild of Knot Tyers were incorporated in 1991. 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.


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