This document contains a keynote presentation about big data by Piyush Malik from IBM. The presentation outlines why big data matters, provides examples of real world big data applications across several industries including industrial, telecom, financial services and healthcare, and discusses how data will drive the future in an increasingly data-driven world. The presentation notes that data volumes, variety and velocity are increasing exponentially and that harnessing analytics enhances business success. It also explores how privacy and data-driven innovation will shape the future.