The Natural History of the Senses, by Diane Ackerman. The title doesn’t do this justice: Diane Ackerman’s writing is exquisite – we’d call it poetic, actually – exploring and explaining not just the sense of smell, but all the senses. In the first chapter – Smell – she looks at scent and memory, at roses, at sneezing, at the way our health (and what we eat) impacts on our body odour. You’ll learn answers to questions you never knew you had, and though this book is over 20 years old, it’s timeless. Really, one of our favourite, favourite books on the subject – and the other four chapters are a ‘gift-with-purchase’.