This is the final volume in the series Mushrooms and Toadstools of Britain & Europe and features part 3 of the agarics or gilled mushrooms. It covers the families Bolbitiaceae, Tubariaceae, Macrocystidiaceae, Inocybaceae, and Entolomataceae. An addendum illustrates a number of species recorded in Britain since volumes 1-3 of this series were produced, and includes a number of recent name changes.