The book in your hands is a collection of papers delivered at the II International Conference "Ecosystems Without Borders: Opportunities and Challenges" held at Kaliningrad State Technical University in February 2023. The materials include studies reflecting the transformation of ecosystems, both in innovative development and in science, technology and business, as well as the spatial aspects of ecosystems and features of the formation of a creative class in ecosystem conditions. In addition, the book includes theoretical articles, which aim to implement the ideas of sustainable development and circular economy. The book is intended for a wide range of readers, including practicing economists, students, graduate students and researchers, as well as government officials and company managers. We are confident that our book serves as an important source of information and knowledge that leads to scientificand innovative progress in the field of sustainable development of society.