Drafting is a dying art, unfortunately. You don't need a book to teach you drafting though, it's just a few line weights and craftsmanship. If your in school, USE THE LIBRARY. It's your best resource. 

Does Columbia have a library? If it does I would suggest going to the area known as the stacks and look through the NA area. You will be amazed at what you might find in the way of Architectural Drafting books.

It turns out that Columbia does have a library. It is called Avery and a quick search of Architectural Drafting returned 185 results.

i thought libraries were only built so rich people could have their name attached to something expensive.

here's a project gutenberg text on drafting, apparently from around 1883 when people were still drafting by hand (geared more towards mechanical drafting, but has a good introduction);

http://www.gutenberg.org/files/23319/23319-h/23319-h.htm

or you could pick up a book like this on your kindle:

http://www.amazon.com/Construction-Drawings-Details-Interiors-Skills-ebook/dp/B005PY79F0/ref=kinw_dp_ke

i'm sure there are others.  i only posted examples from project gutenberg and amazon's kindle library to be an anti-brick-and-mortar smartass.  good luck.

You can also learn a lot by looking long and hard - meaning looking analytically - at beautiful drafted drawings. There is a Frank Lloyd Wright drawing exhibit up at MOMA right now, right? (<Lowrysnark> They don't collect architecture, just architectural artifacts, of course. </Lowrysnark>) FLW was an amazing draftsman, so look hard at where he made lines heavy vs. light, how much he extended them past intersections, how cut lines in section and plan are delineated, how a section and plan align with one another on a sheet, etc.

Any book by Francis DK Ching or Kirby Lockard will also teach you a lot.

This old thread has lost a lot of its image links, but you can get good names from it for whose drawings to look at.  The Mies drawing I reference there is this one, my favorite architectural drawing ever:

Thanks for the suggestions guys and gals, I'll look into the library and the books. Yes Avery has some drafting books but they are non-circulating. I wish I could read and draw at the same time just like how you learn programs on YouTube and excercise it at the same time. @wheat unfortunately I have to agree with you, hand drawing is dying, but I feel there is a quality of authenticity that digital drawing can never replace, but then again technology as a tool is another mode of revealing what your drawing could be

Mechanical Drawing by French and Svensen, the 1919 edition.

Bob Borson has some good info too, not only in this linked blog post but across his whole website.

i didn't even think about you tube.  that's better than a book.  i must be getting old.

http://www.youtube.com/watch?v=jcavjtBarfA&feature=share&list=PLFA43D2C7E7C024D2&index=4

@ARIEL W

Google Peter Salter for beautiful technical drawings, ALL his drawings are nice but his technical drawings are unparalleled. Also, look at drawings on the KROB website, www.krobarch.com

If you're looking for sketching, look up Architects Draw by Sue Gussow. I teach first year drawing if your interested in student examples www.facebook.com/13fortyone