I imagine they (Google) doesn't consider this information private so here's the bulk of an email I got listing prep material and topics: http://pastebin.com/iXGzfkBL
Edit: To clarify, this is for SE, not SRE.
Edit: To clarify, this is for SE, not SRE.
FWIW, I bought "Programming Pearls (2nd Edition)" and "Advanced Programming in the UNIX Environment (3rd edition)". "Programming Pearls" was definitely a good choice.