Artist F. Sehnaz Bac is celebrated for her radiantly colorful and charming painted stones, which she sells on Etsy as I Sassi Dell'Adriatico (The Adriatic Stones). She is also the artist for three Brilliantly Vivid Color-by-Number books: Animal Friends, Flowers and Mandalas, and Birds and Butterflies. Sehnaz has more than 550,000 Facebook followers. She lives in Alba Adriatica, Italy, a small town on the Adriatic Sea.