His photographic works focusing on fireworks are not limited to Japan but all over the world all year around. As he pursues capturing the moment of firework sparkles at the height of 300 meters above ground where firework balls explode, he is acclaimed to be "a photographer who travels to the height of 300 meters." While amateurs are even able to shoot simple fireworks pictures with their smartphones or digital cameras, Saeki daringly chooses conventional film cameras to bring out the charm of analog film and associate with the astral world of fireworks. With no multiple exposure functions in camera, he releases a one-time-only shutter to capture the very moment of firework sparkles. The book is full of exclusive techniques that Saeki effectively commands.