What types of sketches did da Vinci create?

Leonardo da vinci created a variety of sketches, including anatomical studies, engineering designs, and detailed observations of nature. His anatomical sketches, which explored the human body, were groundbreaking for their accuracy and insight. Additionally, he produced designs for inventions such as flying machines and military equipment, showcasing his innovative thinking. Da Vinci's sketches also included studies of landscapes and human figures, reflecting his keen observational skills and artistic mastery.