I learned from the 1st edition, in 1984. It's worth noting that the book was actually written for scientists rather than engineers. I was a math and physics maj

I learned from the 1st edition, in 1984. It's worth noting that the book was actually written for scientists rather than engineers. I was a math and physics major. By a long standing tradition, an electronics course is a standard part of the undergrad physics curriculum. My dad had "Electronics for Scientists" by Malmstadt et al., 1962. His employer put a bunch of scientists through an electronics course. The contrast was pretty remarkable. It's all about vacuum tubes, with some introduction of transistors. The 1st edition of AoE had a reasonable amount of material on digital circuits for back then, but I imagine a similar contrast between 1984 and today. The span of 40+ years has certainly changed how I do electronics.