I don't plan on going back to school, and I enjoy my job, but what are some good ways to be both exposed to new ideas, as well as dive deeper into them? Learning is something that I really enjoy and makes me feel rewarded, but it's not as straight forward now as it was when I was in school.
Optimally, I'd have a reference for the information, and then work on projects to solidify the knowledge. I don't mind paying a bit, especially for a good book.