Yes, I have been looking at SMadsen's "Introduction to AutoLisp" and I must say this is the best, well explained, step-by-step lisp tutorial I've ever seen. I've been using AutoCAD for 7+ years and using other people's autolisps for almost as long, so I knew eventually I'd have to learn to write them to put this program (ACAD) to the best use. I have searched the net endlessly for a simple, easy to understand lisp tutorial and I have finally found what I was looking for. Thank you so much S. Madsen for all your help, you'll never know how much you've help me. (I finally get it)