2D design is flat design, like drawing or sketching.
http://resources.hwb.wales.gov.uk/VTC/ngfl/dandt/75/Tutorials/2D%20Design/Section1.pdf
use this pdf to learn how to use it
1. multi-spectral analysis reveals what is not visible to the naked eye
2. multi-spectral analysis can be used on large art that is hard to move
<span>3. multi-spectral analysis can see below the surface of the artwork </span>