Online training is the art of knowledge transfer through the internet, from anywhere in the globe to targeted audiences who choose to learn a particular subject. Online training courses are of two kinds - free and paid versions. Professionals who excel in a particular field choose to teach and train students who are willing to take up online classes. Notes in PDFs, Word documents, video tutorials, and assessments are given as a package with the training modules, thereby helping students learn faster and easier. Also, some of the certifications and certificates that can be provided, to award candidates for their understanding capabilities, are highly valued by various organizations. Some companies offer training options before employees are made permanent in their jobs. This training does not end before the job begins: It rather continues through online courses by brushing up concepts and new technologies.