Buy 3, pay for 2 — use code TRIPLEUS at checkout. Carol Green | HamelynBuy 3 = Pay for 2 with TRIPLEUS Carol Green has built a prolific literary career spanning a total of 55 works. Her most recognized work is the textbook Introductory Chemistry, a benchmark in the academic field. The author demonstrates unique versatility by writing about both science and the equestrian world. A large part of her bibliography is dedicated to juvenile literature and non-fiction for young readers. Her deep knowledge of horsemanship is reflected in multiple titles specializing in horses.