This cowl is quick to work up and the rows are repetitive. You can work on this while watching tv or sitting at the doctors office. The height of the cowl is completely up to you.
The amount of yarn you will need will vary based on how tall you make the cowl.
I started crocheting when I was pregnant with my daughter. I tried to teach myself using books but it wasn't working so my husband signed me up for some crochet classes at JoAnn's. They helped me learn the basics and I have been crocheting almost every day since then.