How can I improve my understanding and mastery of harmonics on the guitar?

To improve your understanding and mastery of harmonics on the guitar, practice regularly by experimenting with different harmonic techniques such as natural harmonics, artificial harmonics, and pinch harmonics. Study the theory behind harmonics and how they relate to the guitar's fretboard. Utilize resources like online tutorials, books, and instructional videos to deepen your knowledge. Additionally, listening to and analyzing music that features harmonics can help you develop a better ear for incorporating them into your playing.