Continuous Integration (CI) is a development practice that involves developers integrating code into a shared repository frequently, preferably several times a day. Coursera's CI catalogue teaches you how to establish, manage and enhance a CI environment. You'll learn about essential concepts of CI, such as version control, build automation, and automated testing. Additionally, you'll understand how to implement these practices using popular tools like Jenkins, Travis CI, and CircleCI. Through this, you'll gain the ability to detect issues early, improve software quality, and reduce the time to deliver software updates - key skills for software developers, DevOps engineers, and IT professionals.