Quite a lot of these lessons are not new, see Willard C. Brinton "Graphic presentation" - a book (1939), freely accessible https://archive.org/details/graphicpr

Quite a lot of these lessons are not new, see Willard C. Brinton "Graphic presentation" - a book (1939), freely accessible https://archive.org/details/graphicpresentat00brinrich/mode/thumb?view=theater https://archive.org/details/graphicpresentat00brinrich/mode/....