All your questions and worries about Al today - the who, what, where, when and WHY - answered by a computer scientist.It's here and it's not going away - AI is on everyone's mind, but many of us don't know what it is never mind what to think about it! Why AI? is a question-and-answer based exploration of the topic for ages 8 and up, from Dr Dharini Balasubramaniam, a computer scientist at University of St Andrews and a passionate advocate for ethics and education in her field. Dr Balasubramaniam's clear and balanced explanations put our mind at ease, while challenging readers to consider how far AI can and should go in certain areas. She introduces us to the history of the concept of machine learning, the pioneers in the field of AI and the amazing AI doing good work in the world today. The book includes case studies on fascinating topics, such as search-engine AI and exciting robotics, and answers questions, such as: When did AI start?; Why do we need AI?; What can AI DO?; What should AI do?; What is the future of AI?