Let's all learn crochet one stitch at a time :) from the most basic (slip knot) to the most advanced stitches 365 days a year. Height of Basic and Extended Crochet Stitches. SlSt, Sc, Hdc,DC, Tr,DTr, TrTr,QuadTr, QuinTr, Sextuple treble,SepTr, OctTr,NonT