The book "New approaches to obtaining composites based on betulin and its diacyls from birch bark with polymers", written by the team of authors, is a unique study that opens up new horizons in the field of materials science and ecology. This work will be a real find for all those interested in modern technologies, sustainable development and innovation in production. The focus of the book is betulin, a natural compound extracted from the bark of birch, which has many useful properties. The authors propose new methods for the production of composites that combine betulin and polymers, which makes them especially relevant for use in various industries, including medicine, cosmetology and building materials. Readers will be able to learn about how the use of betulin can not only improve the performance of materials, but also make them more environmentally friendly and safe. This book will be of interest to both specialists in chemistry and materials science, as well as students, graduate students and anyone who seeks to expand their knowledge of modern approaches to the creation of composites. It is suitable for those who are passionate about science and are looking for new opportunities for the use of natural resources in high technology. Thanks to the language available and the logical structure, even those who do not have in-depth knowledge in this area will be able to understand the main ideas and concepts presented in the book. The topics raised in the “New approaches to composites” cover not only scientific aspects, but also issues of sustainable development and ecology. The authors emphasize the importance of using renewable resources and minimizing the impact on the environment. This makes the book particularly relevant in light of the contemporary challenges posed by climate change and the depletion of natural resources. Readers will be able to see how science can contribute to creating a more sustainable future. The style of the authors is clear and logical, which makes it easy to assimilate even the most complex concepts. The team of authors includes experts in various fields, which gives the book versatility and depth. Their previous work is also noteworthy: many of them have published articles and studies on ecology, chemistry and new materials. This creates additional context and confirms the high level of submitted material. The book “New Approaches to Obtaining Composites Based on Betulin and Its Diacyls from Birch Cortex with Polymers” will be a valuable resource for researchers, students and practitioners working in the field of materials science and ecology. It inspires new ideas and experiments, opens the door for further research and development. If you are looking for innovative solutions and want to be aware of the latest achievements of science, this book should definitely take a place on your shelf. Thus, this publication not only enriches knowledge in the field of composites, but also emphasizes the importance of a sustainable approach to the use of natural resources. Readers interested in the topics of ecology, innovative technologies and materials science will find in this book a lot of useful information and inspiration for their own projects.