You can start setting up your Trezor device by visiting trezor.io/start. This official Trezor page provides step-by-step instructions to guide you through the setup process. It begins with connecting your Trezor hardware wallet to your computer or smartphone using the provided USB cable or adapter. Then, you'll proceed to initialize your device, set up a PIN, and write down your recovery seed securely. The guide emphasizes security measures to protect your cryptocurrencies. Once set up, you can install the Trezor Bridge or Trezor Suite software to manage your assets conveniently. Follow each step carefully to ensure your device is set up correctly and securely.