A Bode Plot is a graphical representation used in control theory and signal processing to analyze the frequency response of a system. It consists of two plots: one showing the magnitude (in decibels) versus frequency, and the other showing the phase (in degrees) versus frequency. This helps engineers understand how a system behaves at different frequencies, which is crucial for designing stable and effective control systems. Bode Plots are particularly useful for systems described by transfer functions, which relate the input and output of a system. By examining the plots, engineers can identify key characteristics such as gain, bandwidth, and phase margin, aiding in the design and tuning of controllers like PID controllers and filters.