The chapter "Age of Flexible Electronics: Emerging Trends in Soft Multifunctional Sensors" by Jeng-Hun Lee, Kilwon Cho, and Jang-Kyo Kim provides an overview of the latest trends and future research directions in soft multifunctional sensors. These sensors, essential components of next-generation flexible electronics, have gained significant attention due to their adaptability to various surface conditions and ability to detect multiple external stimuli simultaneously. The key characteristics and target stimuli of these sensors are highlighted, including strain, pressure, vibration, temperature, humidity, and biochemical markers. The chapter also discusses the selection criteria for soft multifunctional sensors, such as sensitivity, detection range, response time, resolution, size, cost, environmental influence, and stability. Emerging materials and structures, such as carbon-based materials, MXenes, and piezoelectric polymers, are identified as promising candidates for enhancing sensor performance. The chapter concludes by discussing the challenges and potential opportunities for these sensors in future applications, emphasizing the need for tailored sensor designs to meet specific application requirements.The chapter "Age of Flexible Electronics: Emerging Trends in Soft Multifunctional Sensors" by Jeng-Hun Lee, Kilwon Cho, and Jang-Kyo Kim provides an overview of the latest trends and future research directions in soft multifunctional sensors. These sensors, essential components of next-generation flexible electronics, have gained significant attention due to their adaptability to various surface conditions and ability to detect multiple external stimuli simultaneously. The key characteristics and target stimuli of these sensors are highlighted, including strain, pressure, vibration, temperature, humidity, and biochemical markers. The chapter also discusses the selection criteria for soft multifunctional sensors, such as sensitivity, detection range, response time, resolution, size, cost, environmental influence, and stability. Emerging materials and structures, such as carbon-based materials, MXenes, and piezoelectric polymers, are identified as promising candidates for enhancing sensor performance. The chapter concludes by discussing the challenges and potential opportunities for these sensors in future applications, emphasizing the need for tailored sensor designs to meet specific application requirements.