Many people have a complicated relationship with math. I think that's mostly because of bad teachers... as this book points it out, there are so many life areas where mathematical logic is used that have nothing to do with the numbers. Granted, one has to understand the basic principles of arithmetics - but basic basic, like how does addition or subtraction work. And you don't have to calculate in your head how much 14856+24321 is - although you can, and I learned in this book how. Point being, there is more to math than equations and geometry calculations. Really liked the chapters on tinkering and guessing. Good read overall. Would recommend it to everyone who likes to learn new things and train their minds in a chill way.