This review article discusses the latest developments and trends in electronic skin (e-skin) devices. E-skins are designed to mimic the functions of human skin, providing sensing capabilities such as strain, pressure, shear, temperature, humidity, and self-healing. The article outlines the fundamental strategies for achieving these capabilities, including the use of flexible and stretchable materials, conductive composites, and self-healing polymers. It also covers complex e-skin systems and their current applications, such as in flexible wearable electronics, health monitoring, robotics, and smart manufacturing. The article emphasizes the importance of multimodal e-skins with integrated internet of things (IoT) and machine learning (ML) capabilities for practical applications. It highlights the challenges and future directions in e-skin technology, including improving sensitivity, durability, and self-healing properties. The review also discusses the materials and structures used in e-skins, such as conductive polymers, nanomaterials, and gels, and their advantages and limitations. The article concludes by emphasizing the potential of e-skins in various fields and the need for further research to advance their development.This review article discusses the latest developments and trends in electronic skin (e-skin) devices. E-skins are designed to mimic the functions of human skin, providing sensing capabilities such as strain, pressure, shear, temperature, humidity, and self-healing. The article outlines the fundamental strategies for achieving these capabilities, including the use of flexible and stretchable materials, conductive composites, and self-healing polymers. It also covers complex e-skin systems and their current applications, such as in flexible wearable electronics, health monitoring, robotics, and smart manufacturing. The article emphasizes the importance of multimodal e-skins with integrated internet of things (IoT) and machine learning (ML) capabilities for practical applications. It highlights the challenges and future directions in e-skin technology, including improving sensitivity, durability, and self-healing properties. The review also discusses the materials and structures used in e-skins, such as conductive polymers, nanomaterials, and gels, and their advantages and limitations. The article concludes by emphasizing the potential of e-skins in various fields and the need for further research to advance their development.