There are books of the same chemical composition as dynamite. The only difference is that a piece of dynamite explodes once, whereas a book explodes a thousand times. ― Yevgeny Zamyatin
It was really well-done. I enjoyed the actors who sounded eager and entertaining trying to imitate scientists' accents. What I liked about the series is that the narrators didn't hurl tons of specific terms and factual data at you at lightning speed so that you lose the plot completely.
The book covers a wide range of topics starting from Ancient Greece and Rome, then addressing the Renaissance period to Enlightenment up to modern times. The actors come up with curious examples from the history of brain studies (a story of a certain Anne Greene who was hanged in 1650 but died several years later, for instance).
Some of the scientists mentioned are Hippocrates, Galen, Leonardo da Vinci, Ibn Sina, Vesalius, Luigi Galvani, Santiago Ramon y Cajal, Otto Loewi, Henry Hallett Dale, William Grey Walter, Hans Berger, Edgar Adrian et al.
Here's the list of some topics embraced in the book: trepanation; epilepsy; brain dissection; grey matter and white matter; the circle of Willis; neurons, dendrites and axons; nerve net theory; Functional magnetic resonance imaging.