A subscription study refers to a method of learning or acquiring knowledge through the use of a subscription-based service. This type of study typically involves accessing educational materials, courses, or resources on a regular basis for a set period of time, usually through a paid subscription. It allows individuals to continuously expand their knowledge and skills in a structured and convenient manner, without the need for traditional classroom settings. Subscription studies often offer a wide range of topics and resources, making it a versatile and accessible option for those seeking to further their education or personal development.