Dear Mark, What a deja vu ! I said something similar to less than 2 years ago, right here on this forum: Paul dorfman, Ksharp, Data _null_, Art, Tom, FriedEgg, PG, Joe Matise, Net Wooding and many many others on this forum and SAS-L are still way ahead of me in term of SAS skills, but as you can see, I made my progress in a period time that is not too long (<5 years of SAS on hand), and you can do it as well. Well, now you mentioned Ian, I have to say, if Ian was a SAS professor, I am in 1st grade at best, it still takes me to read 2-3 times before I could comfortably understand his papers, especially those on Macros. The best way to learn SAS is hanging out here at the forum or SAS-L. Anyway, I want to thank you for your attention and your kind words, even though I know there is still a long way ahead of me. And thank you for your SAS endeavors. Haikuo ... View more