The book Multilingualism, Translation and Language Teaching, The PluriTAV Projec, edited by Juan José Martínez Sierra stems from the PluriTav Project funded by the Spanish Ministerio de Ciencia e Innovación and led by researchers at the Universitat de València, Universitat Jaume I, University College London, and the University of Roehampton. The book is divided into 13 chapters within two distinct parts. Part 1 consists of 5 chapters and presents the project rationale, the research and teaching context in which it emerged, its findings, and learning and teaching materials created by project members. Part 2 comprises 8 chapters, each of them featuring a research paper amongst the papers presented at the PluriTAV International Conference Multilingualism, Translation, and Language Teaching, which was held in Valencia, Spain, in 2019. The book is prefaced by an introductory chapter written by the editor and concludes with some final remarks.