This document provides an executive summary of a report on accelerating the transition to a circular economy. It outlines the limits of the current linear "take-make-dispose" economic model, including rising resource prices and volatility. The summary then describes the circular economy as a restorative system that eliminates waste and keeps resources in use for longer. Case studies estimate the potential annual net material cost savings from adopting circular models in EU manufacturing to be $380-630 billion by designing products for reuse, remanufacturing, and recyclability. The report analyzes examples of circular products and sectors to understand how circular models generate economic benefits and argues for mainstreaming circular approaches.