Learn to crochet this easy snood or headband. Great project for crochet beginners! We will use a stitch combination to ...

This cozy cardigan and babydoll top pattern is designed to be fully adjustable for any size. With a free, step-by-step ...

Abstract: Quick response (QR) code is widely used for mobile payment to convey information. However, the traditional QR code has no semantic content and cannot be understood by human. To remedy this, ...