John Postgate describes this autobiography as essentially 'a book about doing science', and while it is an entertaining account of his life in the UK and abroad as he rose to international prominence in microbiology, it is also a book about playing and listening to his beloved jazz. Away from lab and lecture hall, Professor Postgate (brother of the late Oliver Postgate, creator of Bagpuss and the Clangers) has taken enormous pleasure in his hobby, playing cornet over the years with many musicians, some of whom became prominent names in jazz. His articles and reviews for magazines such as Gramophone and Jazz Journal have been as widely appreciated in jazz circles as his contributions to the understanding of certain key microbiological processes, including the sulphur cycle and nitrogen fixation, have been in the world of microbiology.