What information should I look for on the yarn label?

 What is meant by “Yarn Weight Classifications?”

 Can I substitute one yarn weight for another yarn weight?

Why do some yarns have a dye lot number and others are no dye lot?

What are the differences in steel, aluminum, and plastic crochet hooks?   When do I use one kind versus another?

What are double point and circular knitting needles used for? How are they similar and how are they different?

What is “gauge” and how is it determined?

What is the best way to launder projects made from yarn? 

Where can I get help when I have yarn questions?