Mathematics is a complex subject that many people find hard to understand. In her book, How to Bake Pi, mathematics professor Eugenia Cheng uses relatable examples from cooking to explain the beauty and logic of mathematics. For instance, she compares the number five to the bechamel sauce in lasagna and uses the process of making custard to explain why math may be easy but life is hard. 

Cheng's work on category theory, which is a new way of understanding mathematics, forms the core of the book. She explores its implications and provides a fresh perspective on the subject. Her passion for both math and cooking is evident throughout the book, making it an engaging read. Overall, How to Bake Pi provides a unique introduction to the world of mathematics that is both accessible and relatable. It. It has 304 pages and is available in paperback.