This book provides an up-to-date overview of recent advances in advanced communications, modern circuits, and systems technologies, addressing key challenges and emerging trends in contemporary electrical and electronic engineering. Bringing together selected, peer-reviewed contributions from the International Conference on Advanced Communications with Modern Circuits and Systems Technologies (ACMCST’25), the book covers a broad spectrum of topics including intelligent and connected systems, embedded and energy systems, power electronics, artificial intelligence for engineering applications, and next-generation communication technologies. Organized by the MISET Research Team, the conference gathered researchers and professionals from academia and industry to exchange ideas and present innovative solutions. This book is intended for researchers, graduate students, engineers, and practitioners seeking a comprehensive reference on modern electronic systems, intelligent technologies, and advanced communication solutions.