Originally Posted by
ckcowl
Needle type and size are dependent on your project and thread ( weight, type); Superior Threads is a great resource with Free - printable pages that show what needles sizes and types to use with what thread weights and types. They also have Free pages explaining all the different types/ sizes of threads. You can learn a lot visiting their website
I second consulting the Superior knowledge base. I have found it very helpful. Bob from Superior has a YouTube channel and I find his presentations very easy to follow/understand.
For brand Organ is my favorite and Schmetz is my second.