Newly updated and expanded, COLORED GEMSTONES gives you all the information you need to buy, collect, sell— or simply enjoy—sapphires, emeralds, rubies and

Master game design and digital art principles simultaneously with this all-in-one guide to creating games in the cutting-edge game engine Unity. Reworked for C#

Tuning Fork Therapy® using Crystals with tuning forks is a manual instructing the user in how to incorporate crystals and gemstones with tuning forks in a heal

Celebrities and fashion runways are glittering with gemstones, more than ever these days. But for the growing hordes of jewellery makers, gemstones can prove ve