@bob-crum I'm interested in learning about the qualities of different expressions as well, but I haven't looked into it much yet.
You might want to look up Paul Ekman, a psychologist "who is a pioneer in the study of emotions and their relation to facial expressions." (Wikipedia) He's well known due to the TV show "Lie to Me". He's written several books, including "Unmasking the Face: A Guide to Recognizing Emotions from Facial Clues" (with Wallace V. Friesen)
From the reviews I've read, it's more of a reference book or textbook, rather than reading for entertainment, but it describes the facial expressions of basic emotions including the muscles used for different expressions.
Paul Ekman and Wallace Friesen's work has a lot to do with people trying to hide their emotions (whether consciously or subconsciously), but most people can't stop a tiny flash of the emotion on their face or in a gesture of the body. And the facial expressions look the same during these miro-expressions as expressions that are displayed openly. They also found that basic expressions are universal around the world.
Paul Ekman also has training programs to learn how to read microexpressions.
Paul Ekman Group: https://www.paulekman.com/