What are some must-read EWDs? [closed]

Question

Dijkstra was one of the most prolific computer scientists. He wrote the famous EWDs. It is not feasible to read them all. But I think there are some we all must read.

Which of them are a must-read?

Answer 1

Funny. I blogged about this: The E. W. Dijkstra Archive (Update). I think this may be pretty important, because it parallels the A Discipline of Programming book.

See also EWD316, A Short Introduction to the Art of Programming.

Answer 2

I recommend starting with his chapter in "Structured Programming". Not an EWD, technically, but my favorite Dijkstra. I also strongly recommend Stepanov's "Elements of Programming". In my mind, Stepanov is our generation's Dijkstra.