Foreword: Dear parents and educators, the ukulele is a wonderful instrument! It has a special charm. It is small in design, but it can achieve great things. I am always touched by the moments when tears of emotion flow because someone has pulled this instrument out of their backpack and played a birthday serenade. It is particularly accessible, as its purchase, playing technique, size, and volume pose no difficulties. Even on camping trips, there is still room in the car for it. In movies, you occasionally see it being pulled out of a horse's saddlebag to sing a song around the campfire or how the helicopter pilot strums a few chords on it during a break. Stylistically, it is extremely versatile: folk, blues, classical, rock—everything is possible. Additionally, it brings smiles.