I have been working for my local Council for the last couple of years and the vast majority of my work is to produce 2d civil drawings.  As it is a small engineering office, there is no company standards in terms of line type, line width, etc and most drawings are drawn to the technician's choice.  I find this frustating and would like some sort of reference to work from to improve consistancy and give my drawings a more professional feel.

 

Can anybody recommend a book or site that will help?

 

Thanks