This book offers a comprehensive introduction to artificial intelligence and machine learning fundamentals, equipping software testers with the skills to effectively leverage AI-powered solutions for testing complex systems and AI applications. It also fully prepares readers for the ISTQB® Certified Tester AI Testing (CT-AI) certification exam. Written in a practical and accessible style, this book offers a structured approach to AI testing based on the ISTQB® CT-AI syllabus. It includes practical examples, detailed explanations, industry insights, a mock exam and chapter-based questions to help readers succeed in the ISTQB® CT-AI exam. This book is designed for newcomers and seasoned practitioners involved in testing AI-based systems as well as those seeking a deeper understanding of AI systems in general. It offers valuable insights into implementing AI-enabled solutions and enhancing the quality of AI-driven software, making it an indispensable resource. ISTQB® is a registered trademark of the International Software Testing Qualifications Board.