1. Book One
   1. Chapter 1
      1. section #1
      2. section #2
      3. section #3
   2. Chapter 2
      1. section #1
      2. section #2
      3. section #3
   3. Chapter 3
      1. section #1
      2. section #2
      3. section #3
2. Book Two
   1. Chapter 1
      1. section #1
      2. section #2
      3. section #3
   2. Chapter 2
      1. section #1
      2. section #2
      3. section #3
   3. Chapter 3
      1. section #1
      2. section #2
      3. section #3
3. Book Three
   1. Chapter 1
      1. section #1
      2. section #2
      3. section #3
   2. Chapter 2
      1. section #1
      2. section #2
      3. section #3
   3. Chapter 3
      1. section #1
      2. section #2
      3. section #3