1983, The Dead Zone... mostly. Got 3/4 through it before our junior high school library asked for them all back and then removed them from circulation. Had to go to the city library, but couldn't find another copy, so I checked out Cujo instead. To this day I still haven't finished DZ.
My first was Carrie - I received Carrie and the Shining as gifts from my parents on my 11th birthday (this after I'd been sneaking into their room to try and scoop their SK books). Took a year of constantly getting busted trying to read IT, but they eventually gave in!
19 year old. At University. Someone had left an old paperback copy of Misery lying around in our common room for weeks. One day as I was packing my stuff to return home to visit my parents for a couple of weeks, without much thought I picked the book up for the train journey...and there it began! Absolutely loved Misery and after reading it, I returned it to the common room and sought out as many other SK books as I could get my hands on....which later turned out to be all of them :-)