The VATM Yearbook has been used as an important point of reference for the telecommunications industry for almost two decades. It includes analyses, evaluations and comments from the ranks of VATM member companies. These well-founded assessments of the current market situation, the challenges and potential as well as the expectations of politics and regulation in Germany and Europe are what make the publication such a central reflection of the telecommunications industry. Axel Spies is a co-author of it and contributed to the publication with a piece on US fiber optic networks.