Papers for the young and brave:

Large N and AdS-CFT:

Boundary CFT:

Tachyon Condensation:

Effective Field Theory:
Effective Field Theory and the Fermi Surface by Joseph Polchinski
Five lectures on effective field theory by David B. Kaplan
Field Theory Entropy, the $H$-theorem and the Renormalization Group  by  Jose Gaite, Denjoe O'Connor

The Problems of Cosmology:
Is Our Universe Natural? by Sean Carroll