This unique coloring book is the collaboration between an artist and a scientist with the intention to educate while also being relaxing and fun to color. The coloring pages range from easy to very difficult and full of spines The book is divided into six species: Ariocarpus fissuratus, Astrophytum asterias, Echinocereus pectinatus, Ferocactus histrix, Lophophora williamsii, Pelecyphora aselliformis. Each cacti is unique and beautiful in its own right. The first image of each species is realistic and thereafter coloirng pages get more varied and creative. Here at Cactus Infrared our motto is true to form but free with color. Cacti inspire creativity