Simple one-colour shape on a plain background

Showing different colours in different areas

Knitting in different directions

• showing different colours in different squares
• designs within squares
• more complex patterns

Showing three colours - light, dark and mixture

Mitred squares

Simple picture. Mainly in one colour on a dark background but with some shading

Complex design viewed from below

Complex design viewed from the side

Circular illusions

Colour effects

The panels look the same from the side but different when viewed from the front

Complex picture on changing background

Superimposed images

A dark background behind a shaded moon behind the witch

Changing the colour of the yarn

Multiple yarns used for intarsia technique

Complex design on mitred triangles

Variegated yarns used for both colours

Lettering inside other shapes

Knitted in the round

Traditional triangular shawl with geometric design that appears and disappears

Re-interpretation of Woolly Thoughts mathematical designs

Optical illusions