Knuth Selected Papers

Dr Knuth has been publishing compilations of his papers in different subject he is involved, as wide as literate programming until recreational mathematics, This is a good compendium of his work.
the list is:

1. Literate Programming (1992)
2. Selected Papers on Computer Science (1996)*
3. Digital Typography (1999)
4. Selected Papers on Analysis of Algorithms (2000)*
5. Selected Papers on Computer Languages (2003)
6. Selected Papers on Discrete Mathematics (2003)
7. Selected Papers on Design of Algorithms (2007)*
8. Selected Papers on Fun and Games (2007)*

at his page you can find more information.
http://www-cs-faculty.stanford.edu/~knuth/selected.html

Besides there is

• Companion to the Papers of Donald Knuth*