"We know that we use numbers pretty often, some of us confidently, others reluctantly. But are you aware of just how essential they are to almost every decision we make? Counting and measuring when we're shopping, travelling, studying or playing are just the beginning; the applications of numbers are seemingly endless, from assessing variables and analyzing data to the predictions of advanced artificial intelligence. 30-Second Numbers explores number categories, the science of measuring, how guesstimates work, and the visualization of numbers, taking you behind the digits into the world of statistics, probability, risk and ratios. Numbers are our way of imposing order on the world, and each of the 50 topics here uses just 300 words and one picture to give you a sense of control, helping you to understand trends in statistical data, how algorithms are used and the methods involved in machine learning. Numbers need never be daunting again."--