How both logical and emotional reasoning can help us live better in our post-truth world "Advancedmathematics could make a meaningful contribution to creating a better society. this book is proof it can."-- Guardian Ina world where fake news stories change election outcomes, has rationality become futile? In The Art of Logic in an Illogical World ,Eugenia Cheng throws a lifeline to readers drowning in the illogic of contemporary life. Cheng is a mathematician, so she knows how to make an airtight argument. But even for her, logic sometimes falls prey to emotion, which is why she still fears flying and eats more cookies than she should. If a mathematiciancan'tbe logical, what are weto do? In thisinsightful, useful, and funnybook, Cheng reveals the inner workings and limitations of logic, and explains whyalogic-- for example, emotion -- is vital to how we think and communicate. Cheng shows us how to use logic andalogictogether to navigate a world awash in bigotry, mansplaining, and manipulative memes.Settlingthe timeless battle of head vsheart, this essential book isfor anyone who wants to think more clearly.