This document provides an overview of string theory, including its basic properties, characteristics of strings, and levels of magnification. It discusses two actions - Nambu-Goto and Polyakov - used to describe how strings move through spacetime. Strings oscillate due to tension and kinetic energy, and these oscillations take on vibrational modes that determine the string's mass, spin, and charge. Different excitation modes allow strings to appear as different particles. String theory posits strings at the smallest measurable scale of around 10-33 cm. Worldsheets are used to depict the history and splitting/connecting of strings in spacetime. Theorists can construct different string theories based on whether strings are open or closed, and whether they include only bosons or