This is an overview of the extraordinary Theory of Constraints logical thinking tool that leads to: a) improved critical thinking skills in learning situations, b) better choices and understanding of the consequences of behaviour and c) greater abilities to deal with the negative side effects of potentially good ideas. The Logic Branch has wide application across many fields and is primarily used in education, business and community support organisations. Wherever there is a series of steps, actions, or behaviours this tool can be used. This tool is being adopted more and more by educators in teaching the curriculum to students. Students quickly learn to think rather than depend on memory. This logical thinking tool is helping families, communities and organisations achieve their goals. Many community support organisations are adopting the simple yet highly effective tool. This tool is now being taught in 24 countries around the world impacting more than 8 million children and adults.