Delve into the world of classical geometry with this edition of Euclid's Elements, translated and compiled by Alexander Charles McKay and Robert Allen Thompson. Books I, II, and III provide the foundation of Euclid's system and cover basics such as geometric concepts, the circle, and constructing equilateral triangles. This edition features extensive notes and explanations to help modern readers understand Euclid's thought processes and apply his concepts to practical problems.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.