Light art is an applied arts form in which light is the main medium of expression. It is an art form in which either a sculpture produces light, or light is used to create a “sculpture” through the manipulation of light, colors, and shadows. Matthew uses multiple forms of light in his light sculptures such as Imagine, the sculptures that welcome patients to Children’s Hospital in Omaha, Nebraska. The umbrellas of Matthew Placzek’s 90-foot tall “Imagine” at Omaha Children’s Hospital and Medical Center contains 3,500 programmable LED lights capable of more than 16 million colors and combinations. Placzek has combined the timeless beauty of sculpture with the dazzling possibilities of today’s technology to create a sophisticated and ever-changing lighting system. Sunlight is also used as a natural light source to shine through bright acrylics, which create colorful shadows on the ground, as in his creation Harmony. Creating different forms of light for his sculptures brings another dimension of creativity and innovation, and adds even more interest to his pieces.