This document provides an overview of TRIZ (The Theory of Inventive Problem Solving). It discusses that TRIZ is a problem solving methodology developed by Genrikh Altshuller based on patterns of invention observed in patents. The document outlines some of the key principles of TRIZ, including that problems and solutions repeat across industries, technical evolution follows patterns, and innovations borrow from unrelated fields. It also describes some of the main tools of TRIZ, such as the 40 inventive principles, contradiction matrix, and ARIZ problem solving algorithm. Examples are given of how Boeing and other companies have used TRIZ to successfully solve problems.