A journal editor has approached me about websites explaining basic cartographic design principles, to which he can direct authors so that they submit with their papers decent quality maps, suitable for b/w journal reproduction.

I know of the textbooks such as: 

Slocum, McMaster, Kessler, & Howard. 2009. 
Thematic Cartography and Geovisualization,
3rd Ed., Upper Saddle River, NJ: Pearson Prentice Hall,

Dent, Torguson, & Hodler. 2009. 
Cartography: Thematic Map Design, 
6th Ed., Boston, MA: WCB-McGraw Hill, 

Robinson, Morrison, Muehrcke,Kimerling &Guptill. 1995. 
Elements of Cartography, 
5th Ed., NY, NY: John Wiley & Sons, Inc., 

Are there any websites that give similar information on basic principles (sensible barscales, linework, layout, resolution etc)?The main problem he faces seems to be people using GIS to get an automatic map output for locator or thematic maps, that is too low res, overly detailed, or otherwise unsuitable for b/w reproduction in a journal, in a nutshell, simply badly designed.

Thanks 

Brendan