Great magazine! Art printed a few of my letters IIRC. Also, I was the guy who "cracked the code" on the message (or at least I was the first to write him about it and get credit for it). I had it figured out pretty early on, but it took me a while to write him about it. He gave me a free subscription extention for it (see the March/April 2002 issue). I could post his e-mail back to me about it, if that would be OK; it's pretty funny.
And speaking of that issue and Art's humor, check out page 75 and read the "code" on the spine of those issues of LISTENER.
Doug