Euclid's Elements is a mathematical text written by the ancient Greek mathematician Euclid around 300 BCE. It consists of 13 books covering various topics in geometry, number theory, and mathematical logic. The work is known for its systematic approach, starting with definitions, postulates, and common notions, leading to theorems and proofs. The Elements has been influential in the development of mathematics and education for centuries. It introduced the axiomatic method, where mathematical truths are derived from a small set of axioms. This foundational work laid the groundwork for modern geometry and continues to be studied today.