This book is first of all a tool to sensitize the Congolese masses who seem to ignore that access to the library is the beginning of the development of a nation and its people; and a contribution to the fear lurking in librarians-documentalists in their profession in front of the digital in a digitalized world in constant infobesity. Secondly, it aims to be an indispensable info-therapy against the growinginfodemia among community members in "post-COVID-19 libraries"; while demonstrating the contribution of these technologies within documentary institutions, in terms of offering new tools and new value-added services for a visibility-readability " outside the walls ". Despite this digital impulse, professionals trained in information and library sciences are still inevitable until the technological future says otherwise. However, digital technology has significantly affected information services, mainly the library, which is undergoing a transformation from a traditional library to a so-called hybrid (modern) library, despite some innovative shortcomings attached to it.