Anyone serious about stained glass and for the stained glass professional (artist, retailer, instructer, etc.) this is the magazine you MUST have. It's got it's finger on the pulse of the business better than any magazine out there. It also has excellent articles, lovely photos and valuable ads.
(NOTE: This is not for hobbyists. You won't find patterns for suncatchers, or the casual craftsperson showing off their little project. Not to belittle that work...it can be quite stunning...but this magazine is for people doing huge installations, free form glass sculptures, etc.)
The magazine does tend to favor "modern" stained glass...