Pattern. Several models with a single pattern.

 knit




 twisted knit

 twisted purl

decrease left (ssk)

decrease right (k2tog)

3 to 1 (double decrease), centered (skpo)

p2tog (purl 2 together)

p3tog (purl 3 together)

yarn over

yarn over 2 times

increase 1 to 3

Yellow line - the stitch is slipped off the needle and unraveled

 no stitch