Two types of yarn overs are demonstrated here - a yarn over preceding a knit stitch and a yarn over preceding a purl stitch. Every knitter should have both in their knitting know-how!
by Pradhan Stores
by HappyBerry Crochet
by WoolyWondersCrochet
by NotikaLand crochet and knitting
by JoannesWeb
by Happy Crochet Club
by SarahDee Crochet