This document provides an overview of geophysics, including what geophysics is, examples of different types of geophysics (such as solid earth geophysics, exploration geophysics, engineering geophysics), and examples of specific geophysical methods like gravity, magnetics, seismic, ground penetrating radar, and resistivity. It also discusses aspects of planning and conducting geophysical surveys, such as spatial aliasing, sources of noise, data processing, and displaying data.