This is probably the best overall introduction to 3D printing methods, materials and terminology that I’ve found so far (and, to be honest, it has made me think about whether a Prusa printer would be a good thing for my workshop, which is obviously part of the point of the book). I found the descriptions of the different settings, and differences between material types, very useful. I think it could have gone slightly further in a few places, but overall, perfect for my needs and pretty quick to read and absorb.
eBook, 60 pages
Published by Prusa Research.