This document provides an overview of Leesman's research on workplace effectiveness and strategy. Leesman has surveyed over 1,290 workplaces across 50 countries, collecting data from 155,000 employees. They have developed the Leesman Index, which uses this data to measure workplace effectiveness on a scale of 0-100. Workplaces that score over 70 on the Index and meet other criteria qualify for Leesman+'s accreditation for outstanding workplace performance. Leesman will continue using its large dataset to research how workplace design impacts employee and organizational performance.