Gérald Claessens, founder of Knewledge, is a digital marketing expert with 20 years of experience, focusing on data-driven strategies for businesses. The document outlines the company's mission to enhance online visibility and conversions through Google Ads and related platforms, emphasizing the importance of understanding audiences and optimizing campaigns based on performance metrics. Key discussions include the differences between SEO and SEA, audience targeting, remarketing strategies, and conversion tracking techniques.