Precious Gems 1, from Europrice, is the first volume in a coloring collection with illustrations inspired by precious stones and crystals. The Precious Gems collection invites you to color illustrations inspired by precious stones and crystals, with faceted geometric shapes that lend themselves well to vibrant and contrasting color combinations. Europrice is the leading children's book publisher in Portugal, with a catalog designed to stimulate creativity and motor skills through pencil and paper, rather than screens. It is a prime option for children and pre-teens who enjoy geometric patterns and playing with vibrant color combinations.