This compilation brings together 22 sound poems, including both pioneering and current pieces, and constitutes itself as the first great overview of sound poetry from Peru. It continues a cycle that began in 2009 with the appearance of a CD called Inventar la voz: Nuevas tradiciones orales [To Invent the Voice: New Oral Traditions] and was followed up in 2011 with another one called Irse de lengua [To Let It Slip], both of which contributed to articulate diverse manifestations of poetry that used technological means, also in the context of intense activity in the local scenes of experimental music and sound art that opened spaces for interdisciplinary dialogues. What we know as sound poetry is the product of a technological revolution associated with the appearance of various means of recording, transmission and amplification of the voice. A long process that took shape in the 20th century, until it became a discipline, articulated as an international movement which, based on phonetic research, expanded into a universe of oral/vocal artistic practices as part of a new technological context. The recordings gathered here comprise a time frame that goes from 1972 to 2021. We find poems that work with montage techniques, either because they explore simultaneity or juxtaposition, such as those by Mario Montalbetti, Frido Martín, Florentino Díaz, Carlos Estela, Luisa Fernanda Lindo, Macri Cáceres, Rodrigo Vera Cubas, Tilsa Otta, Giancarlo Huapaya/Omar Córdova, Virginia Benavides, Lisa Carrasco and Luis Alvarado. Others emphasize vocal/oral performance: we find the phonetic poems of Carlos Germán Belli and Eduardo Chirinos, as well as the concrete conceptual poems of Michael Prado, Sandra Suazo, Peru Saizprez, and the oral/guttural poem of Omar Aramayo. Finally, we find another group of pieces where the poem starts with the creation of a computational parameter or algorithm, as is the case with the pieces by Jorge Eduardo Eielson and Enrique Verástegui, eventually reaching the use of Artificial Intelligence as in the poems by Francisco Mariotti and Paola Torres Núñez del Prado. The Verbal Matter: An Anthology of Peruvian Sound Poetry is part of a series produced by Buh Records for Centro del Sonido, a website set up as a digital archive of Peruvian experimental music and sound art. The compilation has been made by Luis Alvarado and is published in a limited edition of 300 copies in vinyl format. It includes extensive notes and visual documentation. Mastered by Alberto Cendra. Art by René Sánchez.