Empty the desk drawers and remove the drawers, if possible. Clean off the desk of all objects. This makes the desk lighter and easier to move. Remove any objects blocking your moving path.
Ask an assistant to lift a corner of the desk at least 2 inches off the floor. Slide a glider underneath, ensuring it is securely under the desk and that no part of the corner remains on the floor.
Repeat the process with each desk corner. Ensure that the gliders are all pointing in the same direction if you're using the elongated type.
Position yourself at one end of the desk and your assistant at the other. With one person pushing and the other pulling and steering, glide the desk slowly to move it. Work together so the desk doesn't jar, which can dislodge the gliders. Stop and reposition the gliders if necessary.
Once the desk is in its new position, ask your assistant to lift each corner while you remove the glider. Reinstall the drawers.