Illusion techniques work well for lettering. It is generally best to use simple letter shapes as fancy letters need much more detail and are inevitably rather large.
The alphabets shown above were knitted tightly using DK yarn and are approximately 5” (12.5 cm) high, including the uprights and downstrokes. The larger example (letters 2 stitches wide) is approximately 12” (30 cm) wide; the smaller one (letters 1 stitch wide) is approximately 9” (23 cm).
We have produced a booklet of charts for several plain alphabets and instructions for how to use them. Some are designed to be viewed from below; others are to be seen from the side.