Giacomo Puccini was an Italian composer of operas, and his works are some of the most popular in the genre. His works include La Bohème, Tosca, Madama Butterfly, Turandot, and La Fanciulla del West. These operas have been performed around the world and are considered some of the greatest operas ever written. Puccini's works are known for their melodic beauty and emotional intensity, and they remain popular to this day.