Sectional charts are detailed maps used primarily by pilots for navigation. They provide essential information about terrain, airspace boundaries, and navigational aids, helping pilots safely plan their flight routes. These charts are designed for visual flight rules (VFR) and are updated regularly to reflect changes in airspace and landmarks. Each sectional chart covers a specific geographic area and includes features like airports, radio frequencies, and obstacles such as mountains or tall buildings. Pilots rely on these charts to maintain situational awareness and ensure compliance with aviation regulations while flying at lower altitudes.