Theon of Smyrna: Mathematics Useful for Understanding Plato is a significant work that delves into the mathematical concepts essential for comprehending Platonic philosophy. Translated by Robert and Deborah Lawlor, this rare English edition is based on the 1892 Greek/French version by J. Dupuis and was published in 1979 by Wizards Bookshelf as part of the Secret Doctrine Reference Series .
