More than twenty years ago – and thus still in the era of the dotcom boom – Guillermo started his way in high-tech PR. His clients benefit from his extensive consulting experience from various IT PR agencies. His favorite topics include storage, networking, IoT, B2B software, artificial intelligence, digitalization, IT hardware, logistics and medical technology, as well as the entire spectrum of IT security, from private devices to SAP systems in the data center. Because of his thoroughly researched texts, open communication and Spanish-German name, he is remembered and has built a wide network of contacts in trade and business media for his clients. Along the way, Guillermo maintains his curiosity as a historian who can explain, to name just one point, all aspects of ancient monastic life.