Crochet is a process of creating textiles by using a crochet hook to
interlock loops of yarn, thread, or strands of other materials.
The name is derived from the French term crochet, meaning 'hook'. Hooks
can be made from a variety of materials, such as metal, wood, bamboo,
bone or plastic. The key difference between crochet and knitting, beyond
the implements used for their production, is that each stitch in crochet
is completed before the next one is begun, while knitting keeps many
stitches open at a time.
Some variant forms of crochet, such as Tunisian crochet and broomstick
lace, do keep multiple crochet stitches open at a time.