Definitely Godel, Escher, Bach if you haven't already.
Consciousness is pretty damn weird and no one seems to have much of a handle on it
That sums up the current state of knowledge. What does it mean to be an "observer"?
I assume by "consciousness" you mean the hard problem of consciousness, i.e. why do I have subjective awareness at all. The "easy" problem, how other people's brains cause them to do stuff, is fairly well-covered by standard neuroscience texts.
If you're going to do Hofstadter on consciousness, I Am A Strange Loop is a little more on-point than GEB. GEB is quite good, but most of its pagecount is devoted to an extended exploration of formal grammars and self-reference more generally, which is relevant but mainly as background.
Does LW have a consensus on which books are worthwhile to read regarding consciousness? I read a small intro (Consciousness: A Very Short Introduction, Susan Blackmore, Oxford University Press), and the summary seems to be "Consciousness is pretty damn weird and no one seems to have much of a handle on it". As a non-technical layman, are there any useful books for me to read on the subject?
(I have started reading Daniel Dennet's Intuition Pumps, and I'm a bit torn. He seems highly respected by good scientists, but I feel that if the book didn't have his name on it, I would be well on my way to dismissing it. Are Dennet's earlier works on consciousness a good read?)