Reddit mentions of Condensed Matter Physics

A couple common undergrad/early grad texts are Marder and Ashcroft and Mermin . Try and read some review articles about some of the topics you hear about. This is an interesting article about the unique perspective of cond matter and why it might be important

I recommend Marder It assumes undergraduate knowledge of CM, EM, QM, SM and builds on that. It's also quite hefty, but I think he gives a chapter plan.