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For anyone interested in knots and knot tying, the Ashley Book of Knots[1] is a wonderful book to have. I've spent many happy hours pouring over the knots and their descriptions in this book.

[1] - http://www.amazon.com/The-Ashley-Book-Knots-Clifford/dp/0385...

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It is _the_ book on knots, although it does miss knots invented later in the 20th century, like the Zeppelin bend. I was amazed to learn that it was used as a reference book by mathematical topologists. They will refer to a bend in space as Ashley#1024 for example, since all the knots in the book are numbered in a referential fashion.

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