It's boring to read books with the same font, so I tend to embed fonts. What I often do is install the desired font, enter its name in css and see if it is displayed fine in the preview. Then use the "Embed referenced fonts" feature.
This works for some cases but for many (most) others, Editor just says "No embeddable font found". This forces me to do it manually, it works.
My question is: What is it that determines one font embeddable?
