1. First, position all three dials straight down.
2. Then, find the first number in the combination and turn the top dial clockwise until the number lines up with the marking.
3. Next, find the second number in the combination and turn the middle dial clockwise until the number lines up with the marking.
4. Finally, find the third number in the combination and turn the bottom dial clockwise until the number lines up with the marking.
5. The book should now be open.