Maths anecdotes & trivia assembled in an engaging way by a great communicator – this took a LOT longer to get to reading than I’d hoped but it references earlier chapters throughout which really helps with the recall & comprehension side of things. The invention of 0, the people counting in base-12, cultures who are lightning estimators up to a certain sized quantity, Prime hunters, geometry nerds, set theory… this book touches on lots of maths concepts but manages to frame each in such a way to give the casual reader enough to see them through the explanation – as well as meeting some real characters from history and modern day along the way.