Want to learn more about Plato? Check out this introduction to Plato. Want to learn more about Plato’s Forms and their relation to our world of everyday objects? Alex Gendler discusses this topic and more for TED-Ed in his treatment of Plato’s Allegory of the Cave. You can also watch The School of Life’s discussion of Plato’s Forms and his Allegory of the Cave.

For more on Plato’s theories of justice and the ideal society, watch an introduction to Plato’s Republic by Yale political science professor, Steven B. Smith. Steve Schwartz provides a summary of Books V-VII of Plato’s Republic, which helps the reader understand the connection between knowledge, the Forms, and the ideal state. For a focused discussion of Plato’s division of social classes, watch Professor Smith’s lecture on philosophers and kings.

If you want to read Plato’s Republic, both M.I.T. and Tufts University offer free e-versions of the text. Tufts offers the original Greek as well, along with annotations. David Macintosh offers a clear introduction to Plato’s theory of Forms in the magazine, Philosophy Now. You can also read Plato’s own account of the forms in his dialogue, Phaedo. A robust but accessible discussion of Plato’s views of women can be found on the Classics Network.