The difference between crocheting and knitting.

Knit and crochet tools: Knitting uses two or more pointed needles, while crocheting requires only one needle with a hook on the end.

Knit and crochet stitches: When crocheting, the crafter works on one loop at a time, making chains by pulling a loop of yarn through the loop on the hook, or by inserting the hook into the existing fabric and pulling a loop through both the fabric and the loop on the hook, leaving only one loop on the hook. When knitting, multiple loops or stitches are worked across the needle, the width of the fabric being
dictated by the number of stitches across.

Similar effects can be achieved in both knit and crochet; they are just achieved differently. Cable stitch, the braided pattern that is a standard feature of the fisherman knit sweater, can even been simulated in crochet. Working in the round - that is, crafting a tube of fabric - is possible in both knit and crochet. When knitting, one uses multiple double-sided needles and knits in a circle, while in crochet, one simply connects the foundation chain to its own beginning and crochets over it in a circle.