Might try your local library for old drafting textbooks. Libraries seem
to abound in out-of-date books...
Since cad became the rage, no one is writing, much less selling
drafting books. Too bad. It's much faster to learn to draft than to
learn cad.
You'll need a minium of equipment to start: small drafting board,
t-square, couple of triangles, scaling rule (to draw to some scale, say
1/4 or 1/8), compass, drafting pencil, sharpener, eraser.
No need for fancy, expensive drafting sets just to start.
I'd try to find books that had lessons in them to get started.
Hope this helps.