Press and hold the power button on the bottom of the device for two to three seconds. The Boox logo will appear on screen while the device powers up.
Plug the square-shaped end of the USB cable into the slot next to the power button and connect the other end of the cable to your computer. Click "yes" when a message pops up on the Boox asking if you want to connect to a PC.
Double-click the "My Computer" icon on your PC to open it and then double-click the Boox icon. You will then see two folders: "Library" and "SD Card." Double-click the "Library" folder to open it.
Locate on your computer the book you want to download to the Boox. Click on the file icon, then drag and drop it into the Boox Library folder. This will download the book to your Boox.
Verify the book has been downloaded by clicking the "Library" icon on the Boox main screen to open the folder. You should now see the file name for the book.