As nouns the difference between taxonomy and needlecraft
is that taxonomy is the science or the technique used to make a classification while needlecraft is (uncountable) the art or process of working with a needle in embroidery or needlepoint.
As nouns the difference between needlecraft and needlecrafter
is that needlecraft is the art or process of working with a needle esp. in embroidery or needlepoint while needlecrafter is one who creates needlecraft.