This proceedings is a follow-up for the TASI series held annually to discuss the current theoretical and experimental status in elementary particle physics. Since TASI is designed primarily for advanced graduate students, lectures tend to be pedagogical, in the same mood of the equally successful Erice schools. Brown TASI-88 covered four inter-related areas: Standard Particle Physics, Non-Perturbative Aspects of Quantum Field Theories, Strings and Superstrings, Cosmology and Neutrino-Astrophysics.