Mark Walker has been working with computers since a very early age,starting out with programming the Sinclair ZX Spectrum. After graduating from Cardiff University, he moved to France, starting a 17-year (so far) career in SAP development, fi rst on the SAP ERP, then moving to SAP BW in 2004.He specializes in process optimization,especially in the SAP BPS and BI-IP modules.He's been following SAP HANA since its release in 2011, and is a certified HANA Application Associate since early 2012.Mark has been working for the last six years for Censio, a consultancy in Paris, France, which has expertise in SAP, Microstrategy, Business Objects,and Microsoft BI technologies. During that time he's worked on several end-to-end projects for some prestigious clients, and done some missions in SAP's name.In November 2012, he published SAP HANA Starter, Packt Publishing, a small book about getting a foothold in the SAP HANA world.