The book "Adaptive and Natural Computing Algorithms" offers a comprehensive collection of insights and developments in the field of adaptive and natural computing algorithms. It is based on the contributions from the ICANNGA conferences, which have been held since 1993 and focus on promoting principles and understanding of computer-based intelligence paradigms. The conferences have established themselves as a platform for exchanging ideas and fostering collaboration within the scientific community. This publication covers a wide range of topics, from artificial neural networks to genetic algorithms, providing both theoretical and practical perspectives. The contributions come from leading experts in their fields and reflect the latest developments and trends in computer-based intelligence.