The Mathematicall Praeface to the Elements of Geometrie of Euclid of Megara is a book written by Dr. John Dee. It serves as an introduction to the famous work of Euclid, providing a detailed explanation of the mathematical principles and concepts used in the Elements of Geometrie. The book covers topics such as arithmetic, algebra, geometry, and trigonometry, and includes numerous diagrams and illustrations to aid in understanding. Dee's work is considered a valuable resource for anyone studying mathematics, particularly those interested in the history of the subject. The book was first published in 1570 and has since been reprinted and translated into several languages.1570. Dee's occult philosophy of mathematics.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.