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Michael Faraday was the most famous scientist of the Victorian age and was the director of the Royal Institution in London from 1825 till his death in 1867. As the son of a blacksmith who, because of poor health, could barely support his family, in 1804 at the age of 13, Michael had to stop his schooling and start bringing in some money. He was apprenticed to a London bookbinder, and it was here, he later said, that he got his real education from reading the books. Two in particular made an impression: the Encyclopaedia Britannica, and Mrs Marcet's Conversations on Chemistry.

Philip Ball tells the story of Jane Marcet and how she came to write Conversations on Chemistry. She was a woman who had had no formal scientific training herself, but who grasped the principles as well as anyone in her time. She explained her subject in the form of a conversation between Mrs B and her two pupils. Her book sold well and launched the whole idea of popular science. Philip discusses how science was presented to the public in the first half of the nineteenth century with Dr Melanie Keene, historian of science at the University of Cambridge,

As well as making important discoveries in chemistry, electricity and magnetism, Faraday organised the first Christmas lectures for children at the Royal Institution. They have run ever since 1825. The 2017 lecturer is cognitive scientist Professor Sophie Scott of University College London. She talks to Philip about how science communication has changed since Faraday's time.