Gregor Lersch has analyzed the main contrasts in floristry which are used to steer emotion. Using many step-by-step examples, he illustrated the possible transformations and nuances. The examples are designed to help identify what happens when we make certain changes, so that the designer is able to make informed decisions between harmony and contrast, and is thus able to develop a feel for the correct dosage at a given moment. In this way he becomes more and more skilled in the application of an elementary design principle.--COVER.