Tunisian crochet is like a cross between regular crochet and knitting. Instead of working one stitch at a time, you work one row at a time. You pick up all the stitches along the row, and then "finish" them on the way back. It's a lot easier to understand if you see it being done. I wouldn't say it's quicker than regular crochet... I can do the same square footage at about the same speed with both.