I was a philosophy minor in college, and I’ve been meaning to go back and read a lot of foundational texts on the subject for awhile now. Russell’s book seemed like a good place to start, as it provides basic context on the major “problems” of philosophy. I first read the “problems” in the title as actual problems, i.e. the things that philosophy gets wrong, but it’s “problems” as the challenges that all philosophy grapples with, mostly the concepts surrounding knowledge and how we know what we know.
It’s probably too simple for someone who knows a lot about the basics of philosophy, but it was a great refresher for me and gave me some good ideas of texts to read next.