The Feria Internacional del Libro de Buenos Aires is one of the most important Spanish-language book events in the world and the great public fair of Argentine reading culture. Fundación El Libro holds it at La Rural Predio Ferial. Current 2027 listings place it from 22 April to 17 May, the fair's usual three-week run from late April into May; treat those days as the working window until the foundation publishes the final timetable. Publishers, authors, and readers share a programme of stands, nightly talks, and city-wide literary events. Professional meetings happen, but the distinctive value is the size of the reading public and the depth of the Argentine and wider Latin American lists on the floor. For BooksAffair this is the fair for meeting Spanish-language authors, independent and large publishers, and the book clubs and readers who follow them. Buenos Aires is also Guest of Honour at Guadalajara later in 2027, so relationships started here travel forward.