Dr. Pilar Valenzuela (Associate Professor in the Department of Languages) recently participated in the presentation of the book Estudios sobre lenguas andinas y amazónicas. Homenaje a Rodolfo Cerrón-Palomino, which she co-edited with colleagues from Leiden University and the Pontifical Catholic University of Peru. The book, which contains 21 articles dealing with various topics on Andean and Amazonian linguistics, as well as Spanish in contact with the indigenous languages, is a Festschrift honoring Peruvian scholar Prof. Rodolfo Cerrón-Palomino for his outstanding contributions to the field of Andean linguistics. Dr. Valenzuela’s own article provides a systematic comparison of the basic lexicon and selected grammar features of Shiwilu and Shawi, the two languages that make up the Kawapanan family from north-eastern Peru. Based on this comparison, Dr. Valenzuela offers the first reconstruction of Proto-Kawapanan, the unattested common ancestor of Shiwilu and Shawi.