You should probably add this to your list, "Building Secure and Reliable Systems - Best Practices for Designing, Implementing, and Maintaining Systems" by Heat

You should probably add this to your list, "Building Secure and Reliable Systems - Best Practices for Designing, Implementing, and Maintaining Systems" by Heather Adkins, Betsy Beyer, Paul Blankinship, Piotr Lewandowski, Ana Oprea, and Adam Stubblefield. One of must read books for young SRE's