What is selenium?

What is selenium? How can learn this tool to start my career in testing automation?

Selenium is an automation tool to automate the testing process to save time and expense. This tool can be learnt taking help of internet, studying the shared examples and watching videos from YouTube or any other resource.

Now a days this is very demanded among companies and IT professionals. You can make your career in this domain and earn a handsome package after few years of experience.