This book showcases the latest innovations in architecture and engineering, featuring research and case studies presented at the 21^st International Scientific Conference on Engineering and Architecture (CCIA 2024) in Havana, Cuba. It covers a wide range of topics, including control systems, communications, computer technologies, industrial applications, business management, construction advancements, and sustainable energy solutions. Combining theoretical insights and practical studies, this volume offers valuable perspectives for both academics and professionals looking to tackle the challenges of today's rapidly evolving fields.