Instructor-led training represents overall 66% of corporate training and development; it reaches 76% in high-performing companies and 80% in high-consequence industries (healthcare industry, pharmaceutical industry, finance, utilities, etc.). It is also the most widely-used method for extended enterprise training, which trains customers and partners, with an 80% usage rate. In the UK, one in three companies who use e-learning currently deliver more than three-quarters of their training and development activities completely through face-to-face experiences.The primary reason why human resources departments prefer instructor-led training is its high effectiveness in terms of knowledge retention: in a survey rating every training and development delivery format, in-person instructor-led classrooms are in third position, with 3.63 out of 5, whereas e-learning modules are in seventh position, with a grade of 3.05 out of 5.ILT is an effective means of delivering information, as it allows for real-time feedback, questions and answers, manipulation and changeable delivery to suit the needs of learners in a real-time environment, and a learning environment can be created by the instructor's style.