So many years, so little change in the fundamentals
I've recently finished reading The Psychology of Computer Programming and The Mythical Man-Month. The first celebrating its 30th birth day this year, the second its 25th - meaning that they're both older than me! And yet most of the content feels like it could have been written yesterday. It's truely striking how a profession that has evolved so much in the past couple of decades still haven't changed much at the fundementals.
I strongly recommend reading both of them if you're involved with software development of any kind (but if you're only getting one of them, get the Man-Month). You'll surely be able to relate, and be given amble chance to reflect.