Today while catching up on my sewing and vintage *stuff*, I came across a great article I've seen before in Threads Magazine about pattern grading. It's called Making Sense of Pattern Grading.
Although it wasn't written specifically for vintage use, I think it's particularly relevant to us vintage enthusiasts. If you all are anything like me, you have at least one (or ten or a hundred) awesome patterns that are not your size, but that you just couldn't live without!
So I thought that I'd post a link here to the article on the Threads website for easy reference. You are now liberated - don't let the wrong pattern size stop you ever again!