A Karnaugh Map (K-map) is a visual tool used in Boolean algebra to simplify logical expressions. It organizes truth values of variables in a grid format, allowing users to easily identify patterns and minimize complex logic functions. This method helps in reducing the number of terms in a logical expression, making it simpler to implement in digital circuits. K-maps are particularly useful in designing digital electronics and computer engineering applications. By grouping adjacent cells that represent true values, engineers can derive simpler expressions, leading to more efficient circuit designs. This technique is widely used in circuit design and logic optimization.