Find in this special issue prepared within the framework of Filbo Digital 2021, the following contributions: Editorial by: Tatiana Morales Perdomo - Meeting with: The Library: Business, Culture & Community / Verónica Mendoza Urista; Towards the unknown: Unebook in the pandemic and the immediate future / Alejandro Fernández Diego; The network of UNE spaces and university bookstores / Ana Isabel González González. - Debate: Libraries, knowledge and social change / Felipe Grismaldo Sandoval; Librería Al Pie de la Letra: 28 continuous years of service in the cultural growth of Medellín / Gloria Melo; Odyssey of a University Bookstore / Gladys Grajales Mesa; Trust in Time / Tomás David Rubio Casas. - News: Swedish authors-Filbo. ; Some news for this fair