When working with aluminum sheets, it's important to take certain safety measures. Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a dust mask to protect against sharp edges and metal dust. Ensure good ventilation to avoid inhaling aluminum dust, which can be harmful. Use proper tools designed for metal work to prevent accidents. Keep the work area clean and free from clutter to minimize trip hazards. Be cautious of electrical hazards if using power tools, and ensure all tools are in good working order. Finally, be aware of the fire hazard potential of aluminum, especially when cutting or welding, and have fire extinguishers readily available.