This document provides an overview of a research project conducted by Governance & Accountability Institute to analyze 1,246 sustainability reports published in 2012 using the Global Reporting Initiative framework. The research aims to identify the most and least material environmental, social and governance issues reported across 35 industries. Key findings include rankings of the top 10 and bottom 10 performance indicators reported for each sector. Customized analyses are available for purchase to allow for deeper exploration of reporting trends by geography, sector and company.