Arlene has a list on her blog of authors who she has read almost every book by. I thought this was a fun idea. So here is my list, which will not be as long as hers (you may consider this an unofficial Tag!):

Daniel Pinkwater
Douglas Adams
William Sleator
Emily Bronte
J.R.R. Tolkien
J.K. Rowling
Diana Wynne Jones

I wanted to say Madeline L'Engle, but she has written a WHOLE lot more books than I thought. I also wanted to say L.M. Montgomery, but when I looked her up just now on Amazon I saw there are a bunch more books she's written that I haven't heard of. This is all a little depressing to my list up there. Emily Bronte is cheating I know, because she only had one book published, but I'm countin' it!
Oh darn. I was just looking up some of the other authors to see if I really have read most of their books and I'm not doing so good! But I'm counting J.R.R. Tolkien because all the books his son published posthumously based on his notes don't weigh in. But. . . oh man, I haven't even read everything by Douglas Adams! This list is garbage, GARBAGE! The problem is that dead authors don't stay dead. People keep publishing stuff they worked on, or edited, or notes they wrote on their coffee cups in a spontaneous moment of inspiration.
I guess the only thing I can say is that I read everything by these authors that was available at the public library when I discovered them. So there.
Stupid Amazon.