Wolfgang started to write a series of three articles on AltDevBlogADay on how to design graphics sub-systems. So far there are two articles:
Screen-Space: Rules for Designing Graphics Sub-systems (Part I)
No Look-up Tables: Rules for Designing Graphics Sub-systems (Part II)
The third article “Even Error Distribution (Part III)” will be released soon. Additionally there is an article that is a primer on Points, Vertices and Vectors.