Will post again soon

I have been busy at school, but will be posting regularly again sometime this summer.
For now, I will be better about responding to comments and/or email. Until the summer,
a preview:
(1) books on General Relativity
(2) books on Group Theory in Physics
(3) books on Quantum Field Theory
(4) a list of book series like Feynman, Landau+Lifshitz, Sommerfeld, etc.