The earliest grammar of the Quechua language. Preliminary matter in Spanish and Latin; grammar in Spanish in 25 chapters, with Quechua examples. Includes “Platica para todos los Indios” (leaves 86v-96), with continuous Spanish text on left page and Spanish-Quechua interlinear text facing; a brief addition to the final chapter of the grammar is inserted in the Platica (leaf 95v). Bound with author's Lexicon, o Vocabulario de la lengua general de los Indios del Peru, Ilamada Quichua", Valladolid, 1560.