"The Twenty Steps"

from Ernest Norling,

Perspective Made Easy,Macmillan New York 1939

1. The Horizon , The Vanishing Point, The Eye-Level . |

2. The Eye-Level and Its Relationship to Perspective Drawing. |

3. Parallel Lines as We see Them. Parallel Lines related to One-Point Perspective. |

4. The Three Sets of Parallels. Locating the Point and the EyeLevel. |

5. The Two Vanishing Points, The Height Lines. |

6. Placing the Two Vanishing Points. The Error of Close Spacing. |

7. Showing how the Vanishing Points Move in relation to each other. |

8. Building Perspective with Bricks. |

9. Placing Figures and an object in a Drawing. |

10. Center of Interest. Changing the View. Roofs in Perspective. |

11. Interiors. Placing of Furniture. |

12. Finding the center. Dividing Space into Halves. Practical Applications. |

13. Cylinders in Perspective. Drawing Ellipses. |

14. Practical Uses of Cylinders in Drawing. Dividing the Circle. |

15. Dividing a Surface in Perspective. Drawing a Checkerboard. |

16. Shade and Shadow. |

17. Reflections. |

18. Unusual Perspective. Up and Down Points. Examples. |

19 Perspective Downhill. Perspective Uphill. The False Eye-Level. |

20. Mechanical Perspective. |