In 2010, Kaulitz released a book titled "Der Kleine Horrorladen" ("The Little Horror Shop") which featured a collection of his drawings and illustrations. The book received positive feedback and further highlighted his artistic abilities.
Additionally, Kaulitz has collaborated on various design projects, including the creation of merchandise and clothing lines. His artistic touch can be seen in the visual elements of his band, Tokio Hotel, such as album covers, music videos, and stage designs.
Overall, Bill Kaulitz's talent for drawing is evident in his diverse artistic endeavors, demonstrating his creativity and passion for visual arts.