The formation of the sound F still poses challenges for many preschool children. This exercise booklet is designed to help children acquire the sound F in a playful manner. The exercises are suitable for use in speech therapy, in kindergartens, for example in preschool classes, or to support reading and writing acquisition in elementary school. They are easy to implement and can therefore also support sound acquisition at home. However, they cannot replace speech therapy in cases of speech development delays, but can only complement it. This is a practical exercise book for children, so technical terms have been avoided. The most important information for parents, educators, and therapists can be found in brief form below each exercise under the goal indication.