Color is the most immediately appealing characteristic of flowers. Understanding colors, their physical and physiological backgrounds, effects, symbolism, etc., is therefore essential. All of this is presented, focused on floristry, in the new teaching and learning book by Karl-Michael Haake, "Color Theory in Floristry." The most important color theories and systems are outlined with their advantages and disadvantages in relation to floristry. In particular, the aspect of color-harmonious compositions that can be directly derived from the material is highlighted. All theoretical facts are discussed with extensive visual material and design analyses in their significance for practical floristry. Thus, this book serves as both a foundation and a source of inspiration for one's own creations. It is complemented by a fold-out color chart featuring the important color systems.