The textbook "Heat Transfer in Electronic Components" offers a comprehensive examination of heat transfer in electronic components, based on research conducted at the Nanotechnology Research Laboratory of the National Institute of Technology in Tiruchirappalli, India. It highlights the challenges and solutions in the cooling of electronic components, emphasizing the use of nanofluids as coolants. By analyzing the properties and advantages of nanofluids, it demonstrates how these innovative liquids can enhance the efficiency of heat transfer in high-performance applications. The book is aimed at professionals and students in the fields of mechanical engineering and nanotechnology who wish to develop a deeper understanding of the thermal aspects of electronic systems.