This comprehensive book, Developments in Clay Science and Construction Techniques, is divided into two sections, each focusing on distinct yet interconnected aspects of clay science and building. Section 1, “Innovations and Applications of Clay in Construction”, delves into contemporary advancements and sustainable practices. Chapter 1, “Contemporary Innovations and Sustainable Practices in the Application of Clay Materials within Architectural Design and Construction Methodologies”, discusses new developments and eco-friendly approaches to using clay materials in architecture and construction. Chapter 2, “Nanoclays as Fillers for Performance Enhancement in Building and Construction Industries: State of the Art and Future Trends”, explores the integration of nanotechnology, specifically nanoclays, to enhance construction materials' performance. Chapter 3, “Advancing Sustainable Construction: Insights into Clay-Based Additive Manufacturing for Architecture, Engineering, and Construction”, presents the innovative concept of clay-based additive manufacturing (3D printing), emphasizing its potential to revolutionize sustainability and design precision in the building sector. Section 2, “Technical Studies and Effects on Clay Soil Properties”, focuses on the scientific and technical investigations of clay soils. Chapter 4, “The Effect of Sample Disturbance of Partially Saturated Expansive Clay Soils on the Soil Properties”, examines how sample disturbance affects the properties of expansive clay soils. Chapter 5, “Effect of Compaction Energy on the Behavior of Coefficient of Consolidation for Compacted Fine-Grained Soils”, investigates the impact of compaction energy on soil consolidation behavior. Chapter 6, “Construction Techniques Related to Clay Soils: A Case Study in Africa”, provides a detailed case study highlighting construction techniques used in clay-rich soils within the African context. This book offers an in-depth investigation of clay’s inventive uses and fundamental characteristics, making it a necessary reference for researchers, engineers, and professionals in the field.