Graduate school isn't just for a select few or those aspiring to be researchers. Have you ever felt a sense of dissatisfaction or a desire to delve deeper into a topic after attending seminars, training sessions, or reading books? For working professionals with such aspirations, graduate school for working adults is a viable option. This special feature will explain, step by step, the inner workings of graduate school for working adults, aspects that are often hidden from the outside. The author is Toshio Tane, who has long been involved in editing specialized journals and websites dealing with graduate school for working adults and has interviewed many people involved in such programs. He himself studied at a graduate school for working adults and currently shares information about learning for working adults on a radio program. Please refer to his advice, based on his extensive interview experience and real-world experience. (Supervised by: Kiichiro Inui, Visiting Professor, Niigata University)