PRICES MAY VARY. Your Guide to Mosaic Art from Start to Finish Mosaic art is a technique that has been around for a long time. It involves the use of small tiles called tesserae to create an image. Mosaic art is originally used as an art work but many people use this technique to create decorative yet functional items. Making a mosaic art project looks very challenging but it is something that everyone can easily do as long as they have the right materials, tools and skills. If you want to learn