This primer follows a classical approach to the study of heat transfer with main chapters on conduction, forced convection, natural convection and radiation. Practical problems, however, do not normally divide neatly into purely conduction problems, purely forced convection and so on, although texts often assume this. To overcome this barrier, the author demonstrates in examples and problems that more than one aspect of heat transfer may be needed to solve a single practical problem. The book covers the essential material of a text twice its length, making it easier for the reader to find and understand key principles. It will be of particular interest to undergraduate students in engineering, especially in mechanical and chemical engineering, and to professional engineers working on heat transfer.