Gelertner and Jaganathan's Programming Linguistics is very well written and most interesting. Hennessey and Patterson's Computer Architecture: A Quantitative A

Gelertner and Jaganathan's Programming Linguistics is very well written and most interesting. Hennessey and Patterson's Computer Architecture: A Quantitative Approach is excellent. I also agree with the recommendations elsewhere on the list of Andrew Tanenbaum's book on operating systems, and of Jon Bentley's Programming Pearls books.