Great book recommendation btw. On Writing Well by William Zissner is a great one too. Less autobiographical (but the Stephen King bio IS great and inspirational - still recommend)
Oh, I forgot to do what I always do when I recommend King's book - skip the autobiography at the beginning :P
Maybe if someone really likes King's works it'd be worth reading, but I didn't find it that interesting. I think perhaps if someone wanted to make a career out of writing, it'd be good to get a perspective on what it took him to "make it." Otherwise, eh.