Window frost is knit in the round from the center out. This pattern looks equally good on either side, purl side looks like a snowflake and knit side looks like a flower. Choose your side based on the season. This pattern looks great in speckle, tweed, solid, or striping yarns. Work in cotton to make a washcloth or make a whole bunch in your favorite yarn and create a blanket. There are instructions to create with 3 different weights of yarn (worsted, fingering, crochet thread) to get different size circles or hexagons based on how you decide to block.