Analog Devices' datasheets and application notes taught me so much I didn't learn formally, especially in regards to circuit design in real-world conditions. On the average, they're a real pleasure to read and, generally, you can tell people who actually used the parts to build things had direct input into the datasheet design and layout. As you contributed to that, thank you for making this hobbyist's life better and less stressful. I can only hope Analog Devices permits their staff to publish more about their process for designing, building, and maintaining documentation as they do.
I'll double check if there was anything interesting about how we did documentation lying around. One thing I did want to point out if you like the application notes, is you definitely owe it to yourself to check out the companies tech journal Analog Dialogue
Yes they will try to point out interesting parts they make, but it's like the next level beyond the application notes and a great way to see some practical designs and applications of analog circuit theory in the real world.