The Knot Book: Introduction to the Mathematical Theory of Knots (1994) [pdf]
This is the book that inspired me to create a WebGL knot gallery (<a href="https://prideout.net/knotgl/" rel="nofollow">https://prideout.net/knotgl/</a>) which I eventually rewrote using Filament (<a href="https://prideout.net/knotess/" rel="nofollow">https://prideout.net/knotess/</a>).