You may be surprised by my subsequent statement right at the beginning, but did you know that colors don’t really exist, and light is invisible? You’re probably wondering now if I’ve lost my mind. How can I write a book about colors and say such nonsense at the same time? No, don’t worry, I’m not crazy, and in the following chapters, I’ll convince you of my claim. In this publication by the Czech artist Jan Matejak (MATE ART) you will find a lot of useful, and practical information that will help you to elevate your art creation to a whole new level. You will gain knowledge about additive and subtractive mixing, you will learn how to choose colors on your palette and you will reveal the secret of light and color, color mixing, and color harmony. The book focuses mainly on oil painting. Thanks to the QR codes that you will find in the book, the whole learning process will be easier, faster, and more fun. If you are an artist or painter who enjoys discovering the secrets of colors and their visually captivating world, this book is just for you!