I found a Celtic knot in a coloring book.

I copied and enlarged it to fit a sheet of paper. There are two cords in this knot. I made five copies and cut out the outlines of the cords.

I glued the lighter outlines to the darker outlines. For one outline, I put a spot of glue at the spot where the outline is under the other one. For the other outline, I cut open the spaces where the outline is under the other one.

I used the fifth copy as a placement guide. I positioned one outline on the guide, then put the other on top of it, gluing the two outlines together.

Slide the cut ends under the other outline, and the knot is complete.

Download and print three copies of D11D. This knot is similar to B11B.

Determine the outline of the cords in the knot. The cords may cross over themselves, forming loops in the outline. Color or decorate the separate cords as you wish. Leave one copy blank.

Cut out the cord outlines.

The two cord outlines in this knot are identical. The cords cross over themselves to form three loops (one is very small). Along each loop, two parallel lines indicate where the other cord crosses over it. For each loop, cut open one (and only one) of these spaces.

Use the third printed knot as a placement guide. Look at the end of the knot closest to you to determine which outline goes on top of the other. Look for the first crossing of the two outlines. Place the cut outlines in position on the guide.

Working from the bottom up, either slide cut ends under or bring cord outline to the front, until you reach the top.

Download and print three copies of C1111C.

Determine the outlines of the cords in the knot. The cords may cross themselves, forming loops. Color or decorate the separate cords as you wish.

Cut out the outlines of the cords.

The two cords in this knot have identical outlines. The cords cross themselves twice to form three loops. Within each loop are places (indicated by the spaces) where the other cord crosses over it. For each loop, cut open one (and only one) of these spaces.

Use the third printed knot as a placement guide. Look at the end of the knot closest to you to determine which outline goes on top of the other. Look for the first crossing of the two outlines. Place the cut outlines in position on the guide.

Working from the bottom up, either slide cut ends under or shift one outline over the other, until you reach the top.

Download and print three copies of B11B.

Determine the outlines of the cords in the knot. The cords may cross themselves, forming loops. Color or decorate the separate cords as you wish. Cut out the outlines of the cords.

The two cords in this knot are identical to each other. The cords cross themselves twice to form three loops (one is very small). Within each loop are places (indicated by the spaces) where the other cord crosses over it. For each loop, cut open one (and only one) of these spaces.

Use the third printed knot as a placement guide. Look at the end of the knot closest to you to determine which outline goes on top of the other (look for the first crossing of the two outlines). Place the cut outlines in position on the guide.

Working from the bottom up, either slide cut ends under or shift one outline over the other, until you reach the top.

Download and print three copies of A1111A. Decorate the separate cords on two copies; leave the third copy blank.

Cut out the separate cord outlines (even the “donut holes”).

The two cords in this knot are mirror images of each other. The cords cross over themselves twice to make a chain of three loops. Within each loop are two places (indicated by the spaces) where the other loop crosses over it. For each loop, cut open one (and only one) of these spaces.

Use the third printed knot as a placement guide. Look at the end of the knot closest to you. Place the two cut outlines in position, one on top of the other (in this case, the left on top of the right).  You may wish to glue the two layers together, to form a stable foundation.

Now, working from the bottom up, either slide cut ends under or shift the layers to bring the other outline on top. (In the photos below, note the cut end(s) to slide under.)

Slide the final two cut ends in place, and the knot is complete.