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Silvia Serrano Guerra is the Head of Finance at mediasmart Mobile and the Co-founder of 128 Guides. Previously, she held prominent roles at companies like Willis Towers Watson and Kantar TNS. Silvia has a diverse educational background, including a diploma in Pastry from Le Cordon Bleu Madrid and a Bachelor's degree in Business Administration from Universidad Autónoma de Madrid. She also completed executive management programs in digital business and website design.