Automation involves the use of technology to perform tasks or processes without human intervention. This can include robotic systems, computer software, or artificial intelligence to carry out repetitive or complex tasks efficiently and accurately. Automation is used in various industries including manufacturing, transportation, healthcare, and finance to increase productivity, improve safety, reduce errors, and lower costs. It can range from simple automated processes like email marketing campaigns to more advanced systems like self-driving cars or automated manufacturing lines. Additionally, automation is also being used in processes like data analysis, decision-making, and customer service.