Scientific Illustration : A Guide to Biological, Zoological, and Medical Rendering Techniques, Design, Printing, and Display

From Wikipedia: Technical Illustration is the use of illustration to visually communicate information of a technical nature. Technical illustrations can be components of technical drawings or diagrams. Technical illustrations in general aim "to generate expressive images that effectively convey certain information via the visual channel to the human observer".[1] ~~~ Technical illustrations generally have to describe and explain the subjects to a nontechnical audience. Therefore the visual image should be accurate in terms of dimensions and proportions, and should provide "an overall impression of what an object is or does, to enhance the viewer's interest and understanding".[2]