Signs & markings is one of the most enjoyable parts - also practical if you're looking out airplane windows in airports frequently! https://www.faa.gov/air_traf

Signs & markings is one of the most enjoyable parts - also practical if you're looking out airplane windows in airports frequently! https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap2_section_3.html https://www.faa.gov/air_traffic/publications/atpubs/aim_html...