Improving at chess takes a lot of work and patience.
It cannot happen overnight, but only after investing many hours of training and practicing the newly learned elements. With the development of technology, there are many more materials that can now be easily accessed for study. There are a lot of books, video lessons, articles and databases that are available to any chess enthusiast.
However, creating and following a thorough training plan requires time and we know that there are many chess players out there who are not fully dedicated to playing chess but would nevertheless like to keep improving and squeeze studying in their busy schedule.