In an age when I expect and experience 0.0.X versions of very popular and important Python packages to have major API-breaking changes, it's extremely relevant to point out how a 30-year old, un-updated, book can be useful.
Not just useful, but impressively currently useful. Picking up K&R with little previous experience, and you can make a program that does something in hours, on a current machine. It's dense, but well-written and easy to pick up.
