The question of beauty in the Hippias major
The question of beauty in the Symposium
The question of beauty in the Phaedrus
The second and seventh letters
The critique of rhetoric and writing in the Phaedrus.
Plato and the question of beauty by Drew A. Hyland. ISBN 9780253219770. Published by Indiana University Press in 2008. Publication and catalogue information, links to buy online and reader comments.