NOW AVAILABLE IN SPANISH at https: //www.amazon.co.uk/LIBRO-COLORACI%C3%93N-DEL-CABELLO-Coloraci%C3%B3n/dp/B08WZDPW39/ref=sr_1_1?dchild=1&keywords=el+libro+de+la+coloracion+de+cabello&qid=1613816571&s=books&sr=1-1. The Hair Colouring Book is a practical guide to the theory of colouring hair. It is specifically written for young hairdressers in training. There are 17 chapters and the topics covered include; The Consultation, Levels and Tones, The Colour Wheel, The Numbering System, Racial Differences in Hair, Controlling Warmth, Adding Tone, Grey Coverage and lots more. There's a Quick reference guide with page references to get you quickly to the information and a Glossary to explain some of the Terms used in the book.The book can easily fit into the pocket of a tinting apron so, it will always be to hand when you need it.Apprentices and students of hair colouring will find this book invaluable as it will help to increase job prospects due to improved knowledge.Stylists will be able to better explain theory and techniques to customers leading to improved confidence and client retention.Salon owners will see younger staff learn faster reducing time that they are unprofitable and hairdressing teachers will see that it helps students meet learning targets more easily