Introduction: Extensive reading involves learners reading a lot of books, newspapers, magazines and any other material for enjoyment. This can be achieved and enhanced through availability of either physical or digital libraries. In Physical libraries, a learner is able to locate and borrow books from a physical library while digital libraries is a platform that offers learners with unlimited access to all graded readers anywhere and anytime using their PC or mobile phones. Both types of libraries promote ER through use of graded readers which expose learners to new vocabulary and new language use. Mreader is a component of the physical library while XReading is a component of digital libraries.