I liked the way Debbie explained how the information on the label gives us clues on how to select a viable substitute yarn.  And comparing pattern requirements with label info helps us make a more likely successful choice.  I feel more confident about selcting yarn.

Wow. Very clear explanation on substitution. 

Great tips to help figure out yarn substitutes. Debbie is always very clear in her classes! 

concise and informative 

great way to change to a yarn you like if it works with the gauge