an attachable book mirror device enables the reader of a textual document to view the facial expressions of the young adult , child , toddler , or baby who is listening in close proximity to the reader . the listener can also view the mechanical lip movements of the reader to thereby shorten process of learning to read . the attachable book mirror includes a shell for housing the optically human visual spectrum reflective material that is pivotally connected to a base used to attach to the covers of books or any other suitable document . the reflective material can be adjusted in any allowable position , holding its last position due to certain equal but opposite forces that are generated by certain internal components such as a spring contained within the base that helps create a lasting static contact frictional force . an adjustable light may be pivotally attached to the book mirror .