it is a pdf file.
"superior threads" also has a learning center, with short videos..

thanks!

Thank you :D:D:D

Thanks!!! I have been having trouble with my tension.

I hate touching my tension, but when i have to, i mark where the setting was,before i turn the dial..at least that way i can get back to where i started!

there is a video on that website you can watch also..under "education" then "videos", then "Thread Therapy with Dr. Bob" scroll down until you see "tension"

http://www.superiorthreads.com/videos/thread-therapy/

hope this helps you!

Great site with great information. I refer to it often.