The primer follows a classical approach with main chapters on conduction, forced convection, natural convection and radiation. Practical problems do not normally divide neatly into purely conduction problems, purely forced convection and so on, although other texts often assume this. To help overcome this it has been recognised 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 the length, making it easier for the reader to find and understand key principles.